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Technical Data Sheet
PartsTable / COMPONENT / FF-W-92
FF-W-92 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUCLEAR SAFC SIRPOD is a the manufacturer industrial component. Key specifications include color: BLACK OVERALL, length: 1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM IN, material: STEEL OVERALL, thickness: 0.156 INCHES NOMINAL IN, construction: ONE-PIECE, hole_diameter: 0.515 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-001-4858, 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
FF-W-92
NSN: 5310-00-001-4858
FSC: 5310
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
colorBLACK OVERALL
length1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM IN
materialSTEEL OVERALL
thickness0.156 INCHES NOMINAL IN
constructionONE-PIECE
hole_diameter0.515 INCHES NOMINAL IN
heat_treatmentANNEALED
surface_finish100.0 MICROINCHES ALL SURFACES
hardness_rating38.0 ROCKWELL C MINIMUM
inside_diameter1.031 INCHES NOMINAL IN
outside_diameter1.028 INCHES MINIMUM AND 1.038 INCHES MAXIMUM IN
overall_diameter1.125 INCHES NOMINAL IN
NSN5310-00-001-4858
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FF-W-92 · 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
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
•
COLOR: BLACK OVERALL
•
OVERALL DIAMETER: 0.307 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 1 GRADE AND B CLASS
•
THICKNESS: 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
COLORBLACK OVERALL
OVERALL DIAMETER0.307 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
NONDEFINITIVE SPEC/STD DATAA TYPE AND 1 GRADE AND B CLASS
THICKNESS0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTOXIDE FILM OVERALL
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
21125315900Interchangeable
Same NIIN cross-reference
interchangeable
10116489Interchangeable
Same NIIN cross-reference
interchangeable
AN960XC4Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-W-92?
FF-W-92 is a NUCLEAR SAFC SIRPOD.
What parts can replace FF-W-92?
There are 3 known substitutes for FF-W-92: 21125315900, 10116489, AN960XC4. Substitute compatibility should be verified for your specific system.
What is the NSN for FF-W-92?
FF-W-92 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-001-4858. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026