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10-40704-28 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10-40704-28: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1095 OVERALL, hole_diameter: 0.938 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN, overall_height: 0.086 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN, outside_diameter: 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL, material_thickness: 0.021 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-771-6722, 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
10-40704-28
NSN: 5310-00-771-6722
FSC: 5310 — Nuts and Washers
CAGE: 77820 — AMPHENOL CORP DIV AMPHENOL AEROSPACE OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL COMP 1095 OVERALL
hole_diameter0.938 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
overall_height0.086 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
outside_diameter1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
material_thickness0.021 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
material_document_and_classificationAMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-771-6722
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10-40704-28 · 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: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.021 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL COMP 1095 OVERALL
•
HOLE DIAMETER: 0.938 INCHES MINIMUM AND 0.948 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.086 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN
MATERIAL THICKNESS0.021 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1095 OVERALL
HOLE DIAMETER0.938 INCHES MINIMUM AND 0.948 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 1
7716722Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 10-40704-28?
10-40704-28 is a WASHER,SPRING TENSION.
What parts can replace 10-40704-28?
There is 1 known substitute for 10-40704-28: 7716722. Substitute compatibility should be verified for your specific system.
What is the NSN for 10-40704-28?
10-40704-28 is cataloged in the U.S. Government catalog under NSN 5310-00-771-6722. 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.