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42277-349 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

42277-349: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1095 OVERALL, hole_diameter: 1.030 INCHES NOMINAL1.030 INCHES NOMINAL IN, overall_height: 0.095 INCHES MINIMUM AND 0.095 INCHES MINIMUM AND 0.110 INCHES MAXIMUM0.110 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM45.0 ROCKWELL C MAXIMUM, outside_diameter: 2.000 INCHES NOMINAL2.000 INCHES NOMINAL IN, style_designator: SPRING TENSION. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-073-9225, 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
42277-349
NSN: 5310-01-073-9225
FSC: 5310 — Nuts and Washers
CAGE: 3HRL4 — HORNET ACQUISITIONCO, LLC DBA ONBOARD SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 1095 OVERALL
hole_diameter1.030 INCHES NOMINAL1.030 INCHES NOMINAL IN
overall_height0.095 INCHES MINIMUM AND 0.095 INCHES MINIMUM AND 0.110 INCHES MAXIMUM0.110 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM45.0 ROCKWELL C MAXIMUM
outside_diameter2.000 INCHES NOMINAL2.000 INCHES NOMINAL IN
style_designatorSPRING TENSION
material_thickness0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
material_document_and_classificationMIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-073-9225
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 42277-349 · 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: 40.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM45.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPRING TENSION
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.000 INCHES NOMINAL2.000 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1095 OVERALL
•
HOLE DIAMETER: 1.030 INCHES NOMINAL1.030 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.095 INCHES MINIMUM AND 0.095 INCHES MINIMUM AND 0.110 INCHES MAXIMUM0.110 INCHES MAXIMUM IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM45.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPRING TENSION
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.000 INCHES NOMINAL2.000 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
MATERIALSTEEL COMP 1095 OVERALL
HOLE DIAMETER1.030 INCHES NOMINAL1.030 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 42277-349?
42277-349 is a WASHER,SPRING TENSION.
What is the NSN for 42277-349?
42277-349 is cataloged in the U.S. Government catalog under NSN 5310-01-073-9225. 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.