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FNW12-1032 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

FNW12-1032: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, temp_rating: 500.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNF, overall_height: 0.214 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-958-5895, 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
FNW12-1032
NSN: 5310-00-958-5895
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
temp_rating500.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNF
overall_height0.214 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
washer_thickness0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
width_across_flats0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
nominal_thread_size0.190 INCHES IN
NSN5310-00-958-5895
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FNW12-1032 · 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
•
WASHER OUTSIDE DIAMETER: 0.364 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
TEMP RATING: 500.0 FAHRENHEIT NOMINAL DEGF
•
WASHER THICKNESS: 0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.214 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.364 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
THREAD SERIESUNF
TEMP RATING500.0 FAHRENHEIT NOMINAL DEGF
WASHER THICKNESS0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
SURFACE TREATMENTCADMIUM OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
2110213Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
RM52LH4786-02Reference document
Same NSN cross-reference
Reference document — Secondary reference
PE22005-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HW14-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
CSP106Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
N157187-5Reference 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
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FREQUENTLY ASKED QUESTIONS
What is FNW12-1032?
FNW12-1032 is a NUT,SELF-LOCKING,EXTENDED WASHER.
What parts can replace FNW12-1032?
There are 7 known substitutes for FNW12-1032: 2110213, RM52LH4786-02, PE22005-3 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FNW12-1032?
FNW12-1032 is cataloged in the U.S. Government catalog under NSN 5310-00-958-5895. 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.