PartsTable
Technical Data Sheet
Download PDF

90131A102 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

90131A102: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include width: 0.750 INCHES NOMINAL IN, material: UNABLE TO DECODE, thickness: 0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN, hole_diameter: 0.250 INCHES NOMINAL IN, special_features: MAX. TEMPERATURE: 170 DEG G; HARDNESS: DUROMETER 70A A, center_hole_width: 0.250 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5310-01-461-6933, 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
90131A102
NSN: 5310-01-461-6933
NIINs: 014616933, 017305567
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
width0.750 INCHES NOMINAL IN
materialUNABLE TO DECODE
thickness0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
hole_diameter0.250 INCHES NOMINAL IN
special_featuresMAX. TEMPERATURE: 170 DEG G; HARDNESS: DUROMETER 70A A
center_hole_width0.250 INCHES NOMINAL IN
center_hole_shape_styleROUND
end_item_identification2320-01-690-9233 TRUCK, UTILITY, ISV
part_name_assigned_by_controlling_agencyRUBBER ISOLATOR
NSN5310-01-461-6933
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90131A102 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESORIGINAL NAME WASHER REINFORCED RUBBER
END ITEM IDENTIFICATIONASR 9,AIRPORT SURVEILLANCE RADAR9,DTFA-01-83-C-20027
SUBSTITUTES & CROSS-REFERENCES 1
575R692H44Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 90131A102?
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 90131A102?
90131A102 is a WASHER,FLAT.
What parts can replace 90131A102?
There is 1 known substitute for 90131A102: 575R692H44. Substitute compatibility should be verified for your specific system.
What is the NSN for 90131A102?
90131A102 is cataloged in the U.S. Government catalog under NSN 5310-01-461-6933. 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 — 90131A102

✓ 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.