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1389408-2 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1389408-2: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, material_document_and_classification: MIL-S-22698 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-088-5315, 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
1389408-2
NSN: 5310-00-088-5315
NIINs: 000885315, 012550124
FSC: 5310 — Nuts and Washers
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
material_document_and_classificationMIL-S-22698 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-088-5315
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1389408-2 · 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 A682 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 3.433 INCHES MINIMUM AND 3.515 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.038 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 4 OVERALL
•
HOLE DIAMETER: 2.654 INCHES MINIMUM AND 2.738 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.234 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A682 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER3.433 INCHES MINIMUM AND 3.515 INCHES MAXIMUM IN
MATERIAL THICKNESS0.038 INCHES NOMINAL IN
MATERIALSTEEL COMP 4 OVERALL
HOLE DIAMETER2.654 INCHES MINIMUM AND 2.738 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 6
A-7661-45Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
W3519-038Reference document
Same NSN cross-reference
Reference document — Secondary reference
A-48900EReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
WS3519-038Reference document
Same NSN cross-reference
Reference document — Secondary reference
D75-943-49 PIECE 34Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
80VX1052Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1389408-2?
1389408-2 is a WASHER,SPRING TENSION.
What parts can replace 1389408-2?
There are 6 known substitutes for 1389408-2: A-7661-45, W3519-038, A-48900E and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1389408-2?
1389408-2 is cataloged in the U.S. Government catalog under NSN 5310-00-088-5315. 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.