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003141 — WASHER,CONCAVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

003141: WASHER,CONCAVE.

The WASHER,CONCAVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, overall_height: 0.2812 INCHES NOMINAL IN, overall_diameter: 11.3125 INCHES NOMINAL IN, special_features: BOTTOM COVER, TDB/7; GRADE 20, ST0304, end_item_identification: KETTLE STM JK; W/S: OHIO CLASS SSBN (TRIDENT). This part is cataloged in the U.S.

Government catalog under NSN 5310-00-167-0730, 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
003141
NSN: 5310-00-167-0730
NIINs: 001670730, 015160494
FSC: 5310 — Nuts and Washers
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
overall_height0.2812 INCHES NOMINAL IN
overall_diameter11.3125 INCHES NOMINAL IN
special_featuresBOTTOM COVER, TDB/7; GRADE 20, ST0304
end_item_identificationKETTLE STM JK; W/S: OHIO CLASS SSBN (TRIDENT)
NSN5310-00-167-0730
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 003141 · 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
•
RADIUS: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CONCAVE
•
OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.078 INCHES NOMINAL IN
•
RECESS DIAMETER: 0.438 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.234 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
RADIUS0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
STYLE DESIGNATORCONCAVE
OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
MATERIAL THICKNESS0.078 INCHES NOMINAL IN
RECESS DIAMETER0.438 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.234 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 003141?
003141 is a WASHER,CONCAVE.
What is the NSN for 003141?
003141 is cataloged in the U.S. Government catalog under NSN 5310-00-167-0730. 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.