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657980 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

657980: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 631 OVERALL, hole_diameter: 1.065 INCHES MINIMUM AND 1.075 INCHES MAXIMUM IN, overall_height: 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN, outside_diameter: 1.312 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN, style_designator: SPRING TENSION, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-391-5142, 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
657980
NSN: 5310-01-391-5142
FSC: 5310 — Nuts and Washers
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialSTEEL COMP 631 OVERALL
hole_diameter1.065 INCHES MINIMUM AND 1.075 INCHES MAXIMUM IN
overall_height0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
outside_diameter1.312 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
style_designatorSPRING TENSION
surface_treatmentPASSIVATE OVERALL
material_thickness0.028 INCHES NOMINAL IN
material_document_and_classificationAMS5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-391-5142
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 657980 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: SPRING TENSION
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.312 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.028 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 631 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORSPRING TENSION
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.312 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
MATERIAL THICKNESS0.028 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 631 OVERALL
HOLE DIAMETER1.065 INCHES MINIMUM AND 1.075 INCHES MAXIMUM 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 2
AS-301-883Reference document
Same NSN cross-reference
Reference document — Secondary reference
FS-5845/SCHR-SWReference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 657980?
657980 is a WASHER,SPRING TENSION.
What parts can replace 657980?
There are 2 known substitutes for 657980: AS-301-883, FS-5845/SCHR-SW. Substitute compatibility should be verified for your specific system.
What is the NSN for 657980?
657980 is cataloged in the U.S. Government catalog under NSN 5310-01-391-5142. 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.