PartsTable
Technical Data Sheet
A25KB140 ✓ 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 NUT,PLAIN,BLIND RIVET is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, nut_style: BLIND RIVET W/SMOOTH ROUND SHANK, head_style: FLAT KEYED, key_length: 0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN, nut_length: 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN, head_height: 0.048 INCHES MINIMUM AND 0.068 INCHES MAXIMUM 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 5310-00-916-6592, 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
A25KB140
NSN: 5310-00-916-6592
FSC: 5310
CAGE: 03481 — BFGOODRICH CO THE AEROSPACE DIV ENGINEERED POLYMER PRODUCTS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
nut_styleBLIND RIVET W/SMOOTH ROUND SHANK
head_styleFLAT KEYED
key_length0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
nut_length0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
head_height0.048 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
nut_diameter0.322 INCHES MINIMUM AND 0.342 INCHES MAXIMUM IN
thread_class3B
head_diameter0.460 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
shank_end_typeCLOSED
thread_directionRIGHT-HAND
NSN5310-00-916-6592
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A25KB140 · 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
HEAD HEIGHT: 0.048 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
NUT LENGTH: 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
NOMINAL THREAD SIZE: 0.250 INCHES IN
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH: 20
SHANK END TYPE: CLOSED
MATERIAL: ALUMINUM ALLOY OVERALL
SURFACE TREATMENT: ANODIZE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.048 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
NUT LENGTH0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.250 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20
SHANK END TYPECLOSED
MATERIALALUMINUM ALLOY OVERALL
SURFACE TREATMENTANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLEFLAT KEYED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
55NInterchangeable
interchangeable cross-reference
interchangeable
900051-1Interchangeable
interchangeable cross-reference
interchangeable
1049929Interchangeable
interchangeable cross-reference
interchangeable
31-46606Interchangeable
interchangeable cross-reference
interchangeable
80Interchangeable
8 x 32GB RDIMM, 2400MT/s, Dual Rank, x4 Data Width
interchangeable
74834705Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A25KB140?
A25KB140 is a NUT,PLAIN,BLIND RIVET.
What parts can replace A25KB140?
There are 8 known substitutes for A25KB140: 55N, 900051-1, 1049929 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A25KB140?
A25KB140 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-916-6592. This indicates validated use in U.S. government and defense supply chains.
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