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SS25B391 — NUT,PLAIN,BLIND RIVET

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

SS25B391: NUT,PLAIN,BLIND RIVET.

The NUT,PLAIN,BLIND RIVET is a the manufacturer industrial component. Key specifications include material: STEEL COMP 430 OVERALL, nut_style: BLIND RIVET W/SMOOTH ROUND SHANK, head_style: FLAT COUNTERSUNK, nut_length: 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN, nut_diameter: 0.328 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, thread_class: 3B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-386-8513, 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
SS25B391
NSN: 5310-01-386-8513
FSC: 5310 — Nuts and Washers
CAGE: 3H464 — BOLLHOFF INC. DBA BOLLHOFF RIVNUT INC (USA)
SPECIFICATIONS
materialSTEEL COMP 430 OVERALL
nut_styleBLIND RIVET W/SMOOTH ROUND SHANK
head_styleFLAT COUNTERSUNK
nut_length1.235 INCHES MINIMUM AND 1.265 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
nominal_thread_size0.250 INCHES IN
head_countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
NSN5310-01-386-8513
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SS25B391 · 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
•
NUT LENGTH: 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
HEAD COUNTERSINK ANGLE: 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
•
SHANK END TYPE: CLOSED
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT DIAMETER: 0.328 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
NUT LENGTH1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
HEAD COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
SHANK END TYPECLOSED
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT DIAMETER0.328 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
NUT STYLEBLIND RIVET W/SMOOTH ROUND SHANK
THREAD CLASS3B
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

No substitute or cross-reference records for this part.

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 SS25B391?
SS25B391 is a NUT,PLAIN,BLIND RIVET.
What is the NSN for SS25B391?
SS25B391 is cataloged in the U.S. Government catalog under NSN 5310-01-386-8513. This indicates validated use in U.S. government and defense supply chains.
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