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1W3118-035 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1W3118-035: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1075 OVERALL, hole_diameter: 2.420 INCHES NOMINAL IN, overall_height: 0.237 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN, hardness_rating: 46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM, outside_diameter: 3.118 INCHES NOMINAL IN, material_thickness: 0.035 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-178-3711, 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
1W3118-035
NSN: 5310-01-178-3711
FSC: 5310 — Nuts and Washers
CAGE: 83553 — ASSOCIATED SPRING BARNES GROUP INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1075 OVERALL
hole_diameter2.420 INCHES NOMINAL IN
overall_height0.237 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM
outside_diameter3.118 INCHES NOMINAL IN
material_thickness0.035 INCHES MAXIMUM IN
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-178-3711
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1W3118-035 · 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
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 3.118 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.035 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 1075 OVERALL
•
HOLE DIAMETER: 2.420 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.237 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER3.118 INCHES NOMINAL IN
MATERIAL THICKNESS0.035 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1075 OVERALL
HOLE DIAMETER2.420 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 2
87241 PIECE 64Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
400638-1-EReference 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 1W3118-035?
1W3118-035 is a WASHER,SPRING TENSION.
What parts can replace 1W3118-035?
There are 2 known substitutes for 1W3118-035: 87241 PIECE 64, 400638-1-E. Substitute compatibility should be verified for your specific system.
What is the NSN for 1W3118-035?
1W3118-035 is cataloged in the U.S. Government catalog under NSN 5310-01-178-3711. 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.