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S25KB271 — NUT,PLAIN,BLIND RIVET

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

S25KB271: NUT,PLAIN,BLIND RIVET.

The NUT,PLAIN,BLIND RIVET is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1108 OR STEEL COMP 1110 OVERALL, nut_style: BLIND RIVET W/SMOOTH ROUND SHANK, head_style: FLAT COUNTERSUNK REVERSE KEYED, key_length: 0.089 INCHES MAXIMUM IN, nut_length: 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN, head_height: 0.089 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-025-3746, 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
S25KB271
NSN: 5310-01-025-3746
FSC: 5310 — Nuts and Washers
CAGE: 3H464 — BOLLHOFF INC. DBA BOLLHOFF RIVNUT INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1108 OR STEEL COMP 1110 OVERALL
nut_styleBLIND RIVET W/SMOOTH ROUND SHANK
head_styleFLAT COUNTERSUNK REVERSE KEYED
key_length0.089 INCHES MAXIMUM IN
nut_length1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
head_height0.089 INCHES MAXIMUM IN
nut_diameter0.328 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
thread_class3B
head_diameter0.529 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
shank_end_typeCLOSED
thread_directionRIGHT-HAND
NSN5310-01-025-3746
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S25KB271 · 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: 0.089 INCHES MAXIMUM IN
•
NUT LENGTH: 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
HEAD COUNTERSINK ANGLE: 100.00 DEGREES NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
SHANK END TYPE: CLOSED
•
HEAD STYLE: FLAT COUNTERSUNK REVERSE KEYED
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.089 INCHES MAXIMUM IN
NUT LENGTH1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
HEAD COUNTERSINK ANGLE100.00 DEGREES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SHANK END TYPECLOSED
HEAD STYLEFLAT COUNTERSUNK REVERSE KEYED
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
54B7220H58Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S25KB271?
S25KB271 is a NUT,PLAIN,BLIND RIVET.
What parts can replace S25KB271?
There is 1 known substitute for S25KB271: 54B7220H58. Substitute compatibility should be verified for your specific system.
What is the NSN for S25KB271?
S25KB271 is cataloged in the U.S. Government catalog under NSN 5310-01-025-3746. 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.