PartsTable
Technical Data Sheet
Download PDF

SII1262V8 — SII1262V8

✓ Government record, cited
SONIC INDUSTRIES, INC. DBA SONIC INDUSTRIES INC DIV SONIC INDUSTRIES · NUT WASHER
PRODUCT OVERVIEW

SII1262V8: SII1262V8.

The SII1262V8 is a SONIC INDUSTRIES, INC. DBA SONIC INDUSTRIES INC DIV SONIC INDUSTRIES industrial component. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-456-2289, 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
SII1262V8
NSN: 5310-01-456-2289
FSC: 5310 — Nuts and Washers
CAGE: 57928 — SONIC INDUSTRIES, INC. DBA SONIC INDUSTRIES INC DIV SONIC INDUSTRIES (USA)
SPECIFICATIONS
Part NumberSII1262V8
ManufacturerSONIC INDUSTRIES, INC. DBA SONIC INDUSTRIES INC DIV SONIC INDUSTRIES
NSN5310-01-456-2289
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SII1262V8 · SONIC INDUSTRIES, INC. DBA SONIC INDUSTRIES INC DIV SONIC INDUSTRIES ⚠ 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
•
LUBRICATION: DRY FILM LUBRICANT
•
WASHER OUTSIDE DIAMETER: 0.950 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-8837 TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
WASHER THICKNESS: 0.040 INCHES MINIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
OVERALL HEIGHT0.675 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.950 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-8837 TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
WASHER THICKNESS0.040 INCHES MINIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.500 INCHES IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
SUBSTITUTES & CROSS-REFERENCES 4
HS4133V8Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
SLN125-8Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
PBF1447V8Reference document
Same NSN cross-reference
Reference document — Secondary reference
BH00685V8Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy SII1262V8?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is SII1262V8?
SII1262V8 is a SII1262V8 manufactured by SONIC INDUSTRIES, INC. DBA SONIC INDUSTRIES INC DIV SONIC INDUSTRIES.
What parts can replace SII1262V8?
There are 4 known substitutes for SII1262V8: HS4133V8, SLN125-8, PBF1447V8 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SII1262V8?
SII1262V8 is cataloged in the U.S. Government catalog under NSN 5310-01-456-2289. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — SII1262V8

✓ 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.