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2166677-1 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2166677-1: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OVERALL, hole_diameter: 0.590 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN, overall_height: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, outside_diameter: 0.745 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.013 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-931-8770, 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
2166677-1
NSN: 5310-00-931-8770
FSC: 5310 — Nuts and Washers
CAGE: 11530 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN INFORMATION SYSTEMS & GLOBAL SOLUTIONS (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OVERALL
hole_diameter0.590 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN
overall_height0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
outside_diameter0.745 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
material_thickness0.013 INCHES NOMINAL IN
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-F-14072 FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-931-8770
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2166677-1 · 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: MIL-F-14072 FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.745 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.013 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 301 OVERALL
•
HOLE DIAMETER: 0.590 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072 FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.745 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
MATERIAL THICKNESS0.013 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 301 OVERALL
HOLE DIAMETER0.590 INCHES MINIMUM AND 0.605 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

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 2166677-1?
2166677-1 is a WASHER,SPRING TENSION.
What is the NSN for 2166677-1?
2166677-1 is cataloged in the U.S. Government catalog under NSN 5310-00-931-8770. 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.