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S31-256 — NUT,PLAIN,BLIND RIVET

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

S31-256: NUT,PLAIN,BLIND RIVET.

The NUT,PLAIN,BLIND RIVET is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1108 OVERALL, nut_style: BLIND RIVET W/SMOOTH ROUND SHANK, head_style: FLAT COUNTERSUNK, nut_length: 0.937 INCHES NOMINAL IN, nut_diameter: 0.413 INCHES NOMINAL IN, thread_class: 3B. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-679-4717, 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
S31-256
NSN: 5310-00-679-4717
FSC: 5310 — Nuts and Washers
CAGE: 3H464 — BOLLHOFF INC. DBA BOLLHOFF RIVNUT INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1108 OVERALL
nut_styleBLIND RIVET W/SMOOTH ROUND SHANK
head_styleFLAT COUNTERSUNK
nut_length0.937 INCHES NOMINAL IN
nut_diameter0.413 INCHES NOMINAL IN
thread_class3B
head_diameter0.656 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
shank_end_typeOPEN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OR ZINC OVERALL
nominal_thread_size0.312 INCHES IN
NSN5310-00-679-4717
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S31-256 · 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: 0.937 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
HEAD COUNTERSINK ANGLE: 100.00 DEGREES NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SHANK END TYPE: OPEN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
TECHNICAL CHARACTERISTICS
NUT LENGTH0.937 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
HEAD COUNTERSINK ANGLE100.00 DEGREES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SHANK END TYPEOPEN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
NUT DIAMETER0.413 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
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 2
334-2716-320Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1755553Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 S31-256?
S31-256 is a NUT,PLAIN,BLIND RIVET.
What parts can replace S31-256?
There are 2 known substitutes for S31-256: 334-2716-320, 1755553. Substitute compatibility should be verified for your specific system.
What is the NSN for S31-256?
S31-256 is cataloged in the U.S. Government catalog under NSN 5310-00-679-4717. This indicates validated use in U.S. government and defense supply chains.
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