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25098334 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

25098334: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include hole_diameter: 0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN, outside_diameter: 0.454 INCHES NOMINAL IN, style_designator: COUNTERSINK EXTERNAL TEETH, countersink_angle: 81.0 DEGREES NOMINAL, material_thickness: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN, end_item_identification: MACK TRUCKS. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-554-6283, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
25098334
NSN: 5310-01-554-6283
FSC: 5310 — Nuts and Washers
CAGE: Z4117 — VOLVO GROUP GOVERNMENT SALES OCEANI OCEANIA VOLVO GROUP GOVERNMENT SALES (AUS)
SPECIFICATIONS
hole_diameter0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
outside_diameter0.454 INCHES NOMINAL IN
style_designatorCOUNTERSINK EXTERNAL TEETH
countersink_angle81.0 DEGREES NOMINAL
material_thickness0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
end_item_identificationMACK TRUCKS
part_name_assigned_by_controlling_agencyLOCK WASHERS-CSK. EXT. TOOTH
NSN5310-01-554-6283
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 25098334 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: COUNTERSINK EXTERNAL TEETH
•
OUTSIDE DIAMETER: 0.454 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
•
COUNTERSINK ANGLE: 81.0 DEGREES NOMINAL
•
HOLE DIAMETER: 0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCOUNTERSINK EXTERNAL TEETH
OUTSIDE DIAMETER0.454 INCHES NOMINAL IN
MATERIAL THICKNESS0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
COUNTERSINK ANGLE81.0 DEGREES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCK WASHERS-CSK. EXT. TOOTH
END ITEM IDENTIFICATIONMACK TRUCKS
HOLE DIAMETER0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
35AX180Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 25098334?
25098334 is a WASHER,LOCK.
What parts can replace 25098334?
There is 1 known substitute for 25098334: 35AX180. Substitute compatibility should be verified for your specific system.
What is the NSN for 25098334?
25098334 is cataloged in the U.S. Government catalog under NSN 5310-01-554-6283. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.