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12975412 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12975412: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, thickness: 0.275 INCHES NOMINAL IN, hole_diameter: 1.703 INCHES MINIMUM AND 1.707 INCHES MAXIMUM IN, special_features: IRREGULAR SHAPE,4 MOUNTION HOLES AT CORNERS, end_item_identification: 2350-01-436-0005;ARMORED RECONNAISSANCE-AIRBORNE ASSAULT VEHICLE:WSD;BRADLEY, material_document_and_classification: ASTM B 388,TYPE T-2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-470-6586, 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
12975412
NSN: 5310-01-470-6586
FSC: 5310 — Nuts and Washers
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialIRON OVERALL
thickness0.275 INCHES NOMINAL IN
hole_diameter1.703 INCHES MINIMUM AND 1.707 INCHES MAXIMUM IN
special_featuresIRREGULAR SHAPE,4 MOUNTION HOLES AT CORNERS
end_item_identification2350-01-436-0005;ARMORED RECONNAISSANCE-AIRBORNE ASSAULT VEHICLE:WSD;BRADLEY
material_document_and_classificationASTM B 388,TYPE T-2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-470-6586
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12975412 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B 388,TYPE T-2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: IRON OVERALL
•
HOLE DIAMETER: 1.703 INCHES MINIMUM AND 1.707 INCHES MAXIMUM IN
•
THICKNESS: 0.275 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B 388,TYPE T-2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SPECIAL FEATURESIRREGULAR SHAPE,4 MOUNTION HOLES AT CORNERS
END ITEM IDENTIFICATION2350-01-436-0005;ARMORED RECONNAISSANCE-AIRBORNE ASSAULT VEHICLE:WSD;BRADLEY
MATERIALIRON OVERALL
HOLE DIAMETER1.703 INCHES MINIMUM AND 1.707 INCHES MAXIMUM IN
THICKNESS0.275 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12975412?
12975412 is a WASHER,FLAT.
What is the NSN for 12975412?
12975412 is cataloged in the U.S. Government catalog under NSN 5310-01-470-6586. 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.