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61149-428 — NUT,SELF-LOCKING,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

61149-428: NUT,SELF-LOCKING,CLINCH.

The NUT,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, nut_height: 0.423 INCHES MAXIMUM IN, pilot_length: 0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN, thread_class: 3BG, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), pilot_diameter: 0.304 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-971-7235, 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
61149-428
NSN: 5310-00-971-7235
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
nut_height0.423 INCHES MAXIMUM IN
pilot_length0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
thread_class3BG
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
pilot_diameter0.304 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
precious_materialSILVER
surface_treatmentSILVER OVERALL
nominal_thread_size0.250 INCHES IN
counterbore_diameter0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM NUT IN
NSN5310-00-971-7235
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 61149-428 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
PRECIOUS MATERIAL: SILVER
•
NUT COUNTERBORE DEPTH: 0.093 INCHES MINIMUM AND 0.123 INCHES MAXIMUM NUT IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
COUNTERBORE DIAMETER: 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM NUT IN
•
PILOT DIAMETER: 0.304 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
PRECIOUS MATERIALSILVER
NUT COUNTERBORE DEPTH0.093 INCHES MINIMUM AND 0.123 INCHES MAXIMUM NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
COUNTERBORE DIAMETER0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM NUT IN
PILOT DIAMETER0.304 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
PILOT LENGTH0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
SUBSTITUTES & CROSS-REFERENCES 1
494676Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 61149-428?
61149-428 is a NUT,SELF-LOCKING,CLINCH.
What parts can replace 61149-428?
There is 1 known substitute for 61149-428: 494676. Substitute compatibility should be verified for your specific system.
What is the NSN for 61149-428?
61149-428 is cataloged in the U.S. Government catalog under NSN 5310-00-971-7235. 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.