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1229-R-4100 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1229-R-4100: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include end_item_identification: TRAILER, TANK, part_name_assigned_by_controlling_agency: WASHER, RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-499-3382, 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
1229-R-4100
NSN: 5310-01-499-3382
NIINs: 014993382, 015942355, 016059112
FSC: 5310 — Nuts and Washers
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
end_item_identificationTRAILER, TANK
part_name_assigned_by_controlling_agencyWASHER, RECESSED
NSN5310-01-499-3382
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1229-R-4100 · 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: RECESSED
•
OUTSIDE DIAMETER: 2.750 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.016 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 1.656 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECESSED
OUTSIDE DIAMETER2.750 INCHES NOMINAL IN
MATERIAL THICKNESS0.016 INCHES NOMINAL IN
END ITEM IDENTIFICATIONM871A3 SEMI-TRAILER,22.5 TON,2330-01-458-6865 END ITEM
MATERIALSTEEL OVERALL
HOLE DIAMETER1.656 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1229-R-4100?
1229-R-4100 is a WASHER,RECESSED.
What is the NSN for 1229-R-4100?
1229-R-4100 is cataloged in the U.S. Government catalog under NSN 5310-01-499-3382. 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.