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12417948 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12417948: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 3.0 MILLIMETERS NOMINAL MM, hole_diameter: 11.0 MILLIMETERS NOMINAL MM, overall_diameter: 34.0 MILLIMETERS NOMINAL MM, end_item_identification: HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-381-9974, 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
12417948
NSN: 5310-01-381-9974
NIINs: 013819974, 013854514, 013879787, 014368308
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
thickness3.0 MILLIMETERS NOMINAL MM
hole_diameter11.0 MILLIMETERS NOMINAL MM
overall_diameter34.0 MILLIMETERS NOMINAL MM
end_item_identificationHIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
NSN5310-01-381-9974
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12417948 · 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
•
OVERALL DIAMETER: 42.0 MILLIMETERS MINIMUM AND 44.0 MILLIMETERS MAXIMUM MM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 13.5 MILLIMETERS MINIMUM AND 13.9 MILLIMETERS MAXIMUM MM
•
THICKNESS: 3.4 MILLIMETERS MINIMUM AND 4.6 MILLIMETERS MAXIMUM MM
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER42.0 MILLIMETERS MINIMUM AND 44.0 MILLIMETERS MAXIMUM MM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER13.5 MILLIMETERS MINIMUM AND 13.9 MILLIMETERS MAXIMUM MM
THICKNESS3.4 MILLIMETERS MINIMUM AND 4.6 MILLIMETERS MAXIMUM MM
SUBSTITUTES & CROSS-REFERENCES 2
DIN-440 R13.5100 HV-A3DSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
12417948-005Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 12417948?
12417948 is a WASHER,FLAT.
What parts can replace 12417948?
There are 2 known substitutes for 12417948: DIN-440 R13.5100 HV-A3D, 12417948-005. Substitute compatibility should be verified for your specific system.
What is the NSN for 12417948?
12417948 is cataloged in the U.S. Government catalog under NSN 5310-01-381-9974. 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.