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42499B — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

42499B: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 347 OR STEEL COMP 304 OVERALL, hole_diameter: 0.622 INCHES MINIMUM AND 0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM0.628 INCHES MAXIMUM IN, overall_height: 0.180 INCHES NOMINAL0.180 INCHES NOMINAL IN, outside_diameter: 1.184 INCHES MINIMUM AND 1.184 INCHES MINIMUM AND 1.190 INCHES MAXIMUM1.190 INCHES MAXIMUM IN, material_thickness: 0.007 INCHES MINIMUM AND 0.007 INCHES MINIMUM AND 0.011 INCHES MAXIMUM0.011 INCHES MAXIMUM IN, material_document_and_classification: QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059 MIL SPEC 2ND MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-056-4228, 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
42499B
NSN: 5310-01-056-4228
FSC: 5310 — Nuts and Washers
CAGE: 73760 — ITT AEROSPACE CONTROLS LLC DBA ITT AEROSPACE CONTROLS UNIT S (USA)
SPECIFICATIONS
materialSTEEL COMP 347 OR STEEL COMP 304 OVERALL
hole_diameter0.622 INCHES MINIMUM AND 0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM0.628 INCHES MAXIMUM IN
overall_height0.180 INCHES NOMINAL0.180 INCHES NOMINAL IN
outside_diameter1.184 INCHES MINIMUM AND 1.184 INCHES MINIMUM AND 1.190 INCHES MAXIMUM1.190 INCHES MAXIMUM IN
material_thickness0.007 INCHES MINIMUM AND 0.007 INCHES MINIMUM AND 0.011 INCHES MAXIMUM0.011 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
NSN5310-01-056-4228
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 42499B · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.184 INCHES MINIMUM AND 1.184 INCHES MINIMUM AND 1.190 INCHES MAXIMUM1.190 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.007 INCHES MINIMUM AND 0.007 INCHES MINIMUM AND 0.011 INCHES MAXIMUM0.011 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 347 OR STEEL COMP 304 OVERALL
•
HOLE DIAMETER: 0.622 INCHES MINIMUM AND 0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM0.628 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.180 INCHES NOMINAL0.180 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.184 INCHES MINIMUM AND 1.184 INCHES MINIMUM AND 1.190 INCHES MAXIMUM1.190 INCHES MAXIMUM IN
MATERIAL THICKNESS0.007 INCHES MINIMUM AND 0.007 INCHES MINIMUM AND 0.011 INCHES MAXIMUM0.011 INCHES MAXIMUM IN
MATERIALSTEEL COMP 347 OR STEEL COMP 304 OVERALL
HOLE DIAMETER0.622 INCHES MINIMUM AND 0.622 INCHES MINIMUM AND 0.628 INCHES MAXIMUM0.628 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 42499B?
42499B is a WASHER,SPRING TENSION.
What is the NSN for 42499B?
42499B is cataloged in the U.S. Government catalog under NSN 5310-01-056-4228. This indicates validated use in U.S. government and defense supply chains.
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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.