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388925 — COVER,GUN

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

388925: COVER,GUN.

The COVER,GUN is a the manufacturer industrial component. Key specifications include end_item_identification: GUNS THRU 30MM MM. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-272-6818, 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
388925
NSN: 5315-00-272-6818
NIINs: 002726818, 003826983
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 65282 — WHITE MOTOR CORP (USA)
SPECIFICATIONS
end_item_identificationGUNS THRU 30MM MM
NSN5315-00-272-6818
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 388925 · 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
•
UNDER HEAD LENGTH: 0.673 INCHES MINIMUM AND 0.706 INCHES MAXIMUM IN
•
HARDNESS RATING: 57.0 ROCKWELL C NOMINAL OVERALL
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STYLE DESIGNATOR: STRAIGHT
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PIN HEAD DIAMETER: 0.373 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
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DIAMETER: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
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FEATURES PROVIDED: CASEHARDENED
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HEAD STYLE: FLAT FILLISTER
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HEIGHT: 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
UNDER HEAD LENGTH0.673 INCHES MINIMUM AND 0.706 INCHES MAXIMUM IN
HARDNESS RATING57.0 ROCKWELL C NOMINAL OVERALL
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.373 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
DIAMETER0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
FEATURES PROVIDEDCASEHARDENED
HEAD STYLEFLAT FILLISTER
HEIGHT0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
SPECIAL FEATURES15 DEG CHAMFER AT BEARING SURFACE UNDER HEAD
MATERIALSTEEL COMP 8620 OR STEEL COMP 8720 OR STEEL COMP 3115 OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
2179170Reference document
Same NSN cross-reference
Reference document — Secondary reference
9A0545Reference document
Same NSN cross-reference
Reference document — Secondary reference
1246A261Reference document
Same NSN cross-reference
Reference document — Secondary reference
45182FReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 388925?
388925 is a COVER,GUN.
What parts can replace 388925?
There are 4 known substitutes for 388925: 2179170, 9A0545, 1246A261 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 388925?
388925 is cataloged in the U.S. Government catalog under NSN 5315-00-272-6818. 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.