PartsTable
Technical Data Sheet
Download PDF

655257 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

655257: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include hole_type: DRILLED, head_style: HEXAGON, head_height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN, thread_class: 2A A, hole_diameter: 0.094 INCHES NOMINAL IN, thread_length: 1.250 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-152-8696, 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
655257
NSN: 5310-00-152-8696
NIINs: 001528696, 002530472
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
hole_typeDRILLED
head_styleHEXAGON
head_height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
thread_class2A A
hole_diameter0.094 INCHES NOMINAL IN
hole_quantity1
thread_length1.250 INCHES MINIMUM IN
fastener_length1.625 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
hardness_rating235.0 BRINELL STANDARD MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_between_flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
NSN5310-00-152-8696
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 655257 · 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
SUBSTITUTES & CROSS-REFERENCES 1
265800Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 655257?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 655257?
655257 is a NUT,PLAIN,ROUND.
What parts can replace 655257?
There is 1 known substitute for 655257: 265800. Substitute compatibility should be verified for your specific system.
What is the NSN for 655257?
655257 is cataloged in the U.S. Government catalog under NSN 5310-00-152-8696. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 655257

✓ 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.