Home

9X-8258: M30 ID Steel Flat Washer

Cat® A Hard Washer designed for M30 fastener prevents the fastener from sinking into the material and distributes the load more evenly.

Brand: Cat

9X-8258

3J-1907

7M-8485

9X-8258: M30 ID Steel Flat Washer

3J-1907: 1.98 x 11.89mm 90A NBR O-Ring

7M-8485: 2.95 x 29.74mm 90A NBR O-Ring

3K-0360: 2.21 x 16.36mm 90A NBR O-Ring

6V-8397: 1.78 x 9.27mm 90A NBR O-Ring

6V-8398: 1.78 x 12.47mm 90A NBR O-Ring

Diagram

Description

Specifications

Compatible Models

Description for part number 9X-8258

Cat bolts and matching hardened washers and nuts form a matched system which produces consistently high clamp loads.

Warning:This product can expose you to chemicals including Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specifications for part number 9X-8258

Units of Measure

Metric

Compatible Models for part number 9X-8258

INTEGRATED TOOLCARRIER

IT62H IT12B IT14F

WHEEL TRACTOR-SCRAPER

623 637 627K LRC 631 623K LRC 631K 623K 621K 627K 637K

BUCKET

BUCKET HYD BUCKET

CRUSHER

CR28 CR20 CR35 CR50

WHEEL SKIDDER

535C 535B 545C 525C 525B 545

ROTARY DRILL

MD6310 MD6380

MINI HYD EXCAVATOR

303.5 308E CR 307D 307E 308E2CR 308E 308D 308C 308E2 CR

TRACK FELLER BUNCHER

2391 2491 TK732 TK722 552 2 TK752 522 1190T 532 522B 1290T 552

UNDERGROUND ARTICULATED TRUCK

AD22

HARVESTER HEAD

HH44 DE

FORESTRY PRODUCTS

538 548 558 568 FM528 FM528 LL

TOWED SCRAPER

TS225 TS220 TS185 TS180

WATER FORDING TRACTOR

D7R II

PULVERIZER

P345 P245 P40 P25 P28 P16

EXCAVATOR

330 L 345B II 320-A L FM538 320-A S 320-A N 312B 312C 375-A L 325-A 322B LN FM548 311B 311C 322N 322-A LN 312-A 322C 323D LN 385C FS 330B LN 330D FM 345C 345D 336 MHPU 312B L 548 311-A 385C L 320D2 FM 330 LN 558 365C L MH 336D L 374D L 312C L 350-A L FM558 330C FM 314C 538 FM568 313B 325C 322B L 324D FM LL 330-A L M325D MH 345C L 325-A L 323D S 323D L 322 L 385B 385C 320N 320B 320C 320D 235D 365C L 320B S 320B N 320B L 330C 320 L 365B L M325D L MH 365C 365B MH3295 390D 325 LN 320D FM RR 390D L 319D LN 340MHPU 325C FM 330B L 325D FM 319D L 325 L 330C L 568 FM 320D FM 330D L 350 OEM 322-A L E120B 322-A N 325-A LN 330D MH 328D LCR 324D FM 319D 330D LN 320C FM 568 FM LL E110B 320 322 LN 320-A 336 330-A 330C LN 385C L MH 375-A 330-A LN 365B II 322C FM

SHOVEL

6040

COMPACT TRACK LOADER

285XE 275 285 255 265 275XE

WHEEL TRACTOR

631K 623H 621H 627H 637K

ROTARY MIXER

RM800

WORK TOOL

GB120 2023

TRACK LOADER

973 973C 973D 973K 963C

SOIL COMPACTOR

825 815 825H 825G 825K 815F II 815K 815F 825G II

BACKHOE LOADER

442E 424B HD 415 424B 424 434E 422E 424B2 432E 444E 428E

WHEEL DOZER

844H 844K 834 844 834G 834H 834B 834K 814B 824H 824G 824K 814F II 814K 814F 814 824 824G II

LANDFILL COMPACTOR

836 826 826G II 816F II 816K 836H 836G 836K 816 826G 826H 826K 816F

TELEHANDLER

TH355B TH350B TH360B

COMPACT WHEEL LOADER

910F 910E

WHEEL LOADER

982XE 960F 972G 972H 972K 988 XE 972M 972L 966 XE 950E 950G 962H 986H 950H 950K 962L 986K 962K 950M 950L 962M 980XE 988B 988G 988H 988F 988K 966D 966E 966H 966G 966L 966K 966M 950GC 814K 962G II 938G 938F 938H 990 II 962 966 972 966 GC 988F II 972 XE 986 966XE 980 982 950G II 980GC 988 995 994 990 992 980G II 988K XE 950 982 XE 980F II 980 XE 966F II 962M Z 980K HLG 950M Z 950B/950E 966K XE 990K 990H 950 GC 972G II 972M XE 993K 966M XE 992D 980C 992C 980F 980H 980G 992G 980L 980K 972XE 980M 994F 994D 970F 994K 994H 966G II 982M 950F II

FORWARDER

574B 554 564 584 584HD

ARTICULATED TRUCK

725C 730C2 725C2 730 EJECTOR 740C 740 GC 730C 745C 725 740 735C 745 730 735

WHEELED EXCAVATOR

M322D MH M330D M318D MH M322D

PNEUMATIC COMPACTOR

PS-300B PS-300C CW34 CW-34 PF-300C PF-300B

WHEEL SCRAPER

637K

ASPHALT SCREED

SE60 V SE47 V SE50 V SE60 VT XW SE60VT XW SE60 V XW

QUARRY TRUCK

777E 772G 770G

LOGGER

322C

AUGER

A68 A26B

BULLDOZER

D8T

QUICK COUPLER-LWL

SW2211

BLADE

GB124

UNDERGROUND ART TRUCK

AD22 AD45B AD45

LOAD HAUL DUMP

R1700 R1700 XE

OFF HIGHWAY TRUCK

789G 777G 777E 789D 773GC 772 770 777 775 773 793F 798 AC 785D 789 785 793

MATERIAL HANDLER

MH3037 MH3049 MH3050 MH3295 MH3059

MOTOR GRADER

16 14 18 120M 120K 120M 2 140M 140K 140K 2 12M 3 12M 2 140M 3 140M 2 160M 2 160M 3 18M3 12M 3 AWD 16M 160 16H 14L 150 14M 160M 3 AWD 140 16GC 12M 12K 14M3 120 160K 160M 140M 3 AWD 16H NA 16M3 14M-3 120K 2

ROTARY CUTTER

RC20

HYDRAULIC SHOVEL

6015 6040 6030 6015B 6020B 6060

TRACK-TYPE TRACTOR

D6R III D6G2 LGP D6XE D10 D11 D8 GC D9 GC D6R II D7R SERIES D6K2 LGP D5R2 D6R D6T D6N D6K D7E D9 D6 D8 D7 D6 XE D11T D7R XR D6T LGP D8 XE D6GC D7R LGP D6T LGPPAT D6R XL D6K2 XL D6T XW D6T XL D8GC D6K LGP D7R D8T D8R D10T2 D8N D6R STD D6K XL D9T D9R D8R II D6T XL PAT D6T XW PAT D6G2 XL D6K2 D7R II D6R LGP D7E LGP

KNUCKLEBOOM LOADER

579C 2484C 559D

ASPHALT PAVER

AP1055 AP500 AP655 PE636 AP400 AP300F AP600 AP555F AP500F AP655F SE47 AP655F L AP600F AP-1000F AP-300D AP355 AP-1055F AP555 AP300 AP355F AP455 AP1000

HAMMER

B30 H130GC

PIPELAYER

PL83 PL87 PL72 PL61 583T

MINING EXCAVATOR

5230B 5230 5130B

LOG LOADR FORST MACH

558

BROOM-ANGLE

BA30

FRONT SHOVEL

385C 5080 5090B

SHEAR-DEMOLITION/SCRAP

S80 S25 S50 S40 S30 S130

VIBRATORY COMPACTOR

CS-56 CS-54 CP-533D CP-533E CS-44 CS-433E CS-663E CS-531D CP-663E CP-433E CS-423E CS-533D CS-533E CS-76 CS-74 CP-563E CP-563D CS-64 CP-64 CP-54 CP-56 CP-44 CP-76 CP-74 CP-573E CS-583E CS-583D CS-573D CS-573E CS-683E CS-563D CS-563E

PETROLEUM PACKAGE

CX35-P800 CX31-C18I CX31-C11I CX35-C18I CX31-C15I CX31-C13I CX31

MOBILE HYD POWER UNIT

385C 365C L 352FMHPU 349D L 385C L 340D2 L 336D L 336F 345D 330D 349D2 345C L

GENERATOR SET

DE1400 G3520 DE1500 D1250 DE1000S D1000 3508B C4.4 DE1250S D800 DE1250 G3520K 3516C 3516C GEN SET 3516E

RECLAIMER MIXER

RM800

ENGINE

C175-20

EJECTOR TRUCK

730C 740B 730C2 EJ 740 730

COLD PLANER

PM820 PM825 PM822 PM620 PM622 PM-565B PC9 PC6 PM-465 PM-201

FOREST PRODUCTS

OTHER

ELECTRIC ROPE SHOVEL

7495 HF 7495

WIDE BODY TRUCK

707

ROAD RECLAIMER

RM800 RM600

GEN SET ENGINE

DE1100 DE800S

ROTARY/TRACK DRILLS

MD6540 MD6640

SKID STEER LOADER

270XE 250 260 270 265

INDUSTRIAL LOADER

415F2 IL

TRUCK

793F XQ 794 AC 793F CMD 772G OEM 793F OEM 789D 777G 770G OEM 785 797 770G 793F 772G 785G 797F 785D 797B 795F AC 793F AC

Compare Alternate Parts

Outer Diameter (in)

Thickness (in)

Inside Diameter (in)

Description

9X-8258: M30 ID Steel Flat Washer

2.205

0.236

1.299

Cat® A Hard Washer designed for M30 fastener prevents the fastener from sinking into the material and distributes the load more evenly.

606-0855: Washer Kit - Large Sizes

1/2, 5/8

Washer Kit: 7 Sizes, 7 Assorted Thicknesses, 10 Part Numbers, 150 Pieces, Hard Washers, Zinc Flake Coating

Related parts

8T-5065: M30 x 3.5mm Hex Lock Nut

Cat® Nylon Insert Locknut for thumb ensures secure and reliable fastening of the thumb attachment and prevents loosening

8C-8722: M30 x 3.5mm Hex Nut

Metric, Coarse Thread UNC

7X-7900: M30-3.5 x 50mm Hex Head Bolt

Hex Head Bolt

8C-8723: M30-3.5 x 80mm Hex Head Bolt

Track Bolt

7X-2583: M30-3.5 x 120mm Hex Head Bolt

Cat® M30x3.5 Thread 120mm Long Hex Head Bolt

7X-2581: M30-3.5 x 100mm Hex Head Bolt

Cat® Hex Head Bolt

8T-5065: M30 x 3.5mm Hex Lock Nut

8C-8722: M30 x 3.5mm Hex Nut

7X-7900: M30-3.5 x 50mm Hex Head Bolt

8C-8723: M30-3.5 x 80mm Hex Head Bolt

7X-2583: M30-3.5 x 120mm Hex Head Bolt

7X-2581: M30-3.5 x 100mm Hex Head Bolt

Key

Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced

9X-8258: M30 ID Steel Flat Washer

9X-8258: M30 ID Steel Flat Washer

9X-8258

3J-1907

7M-8485

This part:

This part:

This part:

This part:

This part:

This part:

Description for part number 9X-8258

Specifications for part number 9X-8258

Material:

HARDENED STEEL,Low Alloy Steel,Alloy Zinc

Washer Type:

Flat

Coating:

Zinc Flake

Outer Diameter (in):

2.205

Thickness (in):

0.236

Hardened:

Yes

Inside Diameter (in):

1.299

Outside Diameter (in):

2.205

Finish Notes:

Caterpillar is changing from Zinc Plating to a Zinc Flake finish for many washers. The new coating improves corrosion protection to 720 hours. Until stock of the current finish is depleted, you may receive either finish due to the exhaust process.

Finish:

Zinc Flake

Compatible Models for part number 9X-8258

Compare Alternate Parts

Outer Diameter (in)

Thickness (in)

Inside Diameter (in)

Description

This part:

9X-8258: M30 ID Steel Flat Washer

This part:

606-0855: Washer Kit - Large Sizes

Related parts

Key

Key

Factory Fit

Find Parts

Support

My Account

Cat Social

Find Parts

Support

My Account

Cat Social

Language

CAT Sites

9X-8258: M30 ID Steel Flat Washer

9X-8258: M30 ID Steel Flat Washer

Will It Fit?

Add your equipment to see if this part fits or if there are repair options available.

Description for part number 9X-8258

Specifications for part number 9X-8258

Material:

HARDENED STEEL,Low Alloy Steel,Alloy Zinc

Washer Type:

Flat

Coating:

Zinc Flake

Outer Diameter (in):

2.205

Thickness (in):

0.236

Hardened:

Yes

Inside Diameter (in):

1.299

Outside Diameter (in):

2.205

Finish Notes: