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7251251 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7251251: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.9990 INCHES MINIMUM AND 0.9995 INCHES MAXIMUM IN, diameter: 1.375 INCHES NOMINAL IN, material: STEEL COMP 322 OVERALL, head_style: HEXAGON COUNTERSUNK, style_designator: STRAIGHT, under_head_length: 3.474 INCHES MINIMUM AND 3.475 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-613-3853, 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
7251251
NSN: 5315-01-613-3853
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
height0.9990 INCHES MINIMUM AND 0.9995 INCHES MAXIMUM IN
diameter1.375 INCHES NOMINAL IN
materialSTEEL COMP 322 OVERALL
head_styleHEXAGON COUNTERSUNK
style_designatorSTRAIGHT
under_head_length3.474 INCHES MINIMUM AND 3.475 INCHES MAXIMUM IN
width_across_flats1.718 INCHES NOMINAL IN
head_inside_diameter0.775 INCHES NOMINAL IN
head_countersink_angle0.438 DEGREES NOMINAL
bottom_countersink_diameter0.621 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN
NSN5315-01-613-3853
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7251251 · 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 INSIDE DIAMETER: 0.775 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 1.718 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 3.474 INCHES MINIMUM AND 3.475 INCHES MAXIMUM IN
•
HEAD COUNTERSINK ANGLE: 0.438 DEGREES NOMINAL
•
STYLE DESIGNATOR: STRAIGHT
•
DIAMETER: 1.375 INCHES NOMINAL IN
•
HEAD STYLE: HEXAGON COUNTERSUNK
•
HEIGHT: 0.9990 INCHES MINIMUM AND 0.9995 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD INSIDE DIAMETER0.775 INCHES NOMINAL IN
WIDTH ACROSS FLATS1.718 INCHES NOMINAL IN
UNDER HEAD LENGTH3.474 INCHES MINIMUM AND 3.475 INCHES MAXIMUM IN
HEAD COUNTERSINK ANGLE0.438 DEGREES NOMINAL
STYLE DESIGNATORSTRAIGHT
DIAMETER1.375 INCHES NOMINAL IN
HEAD STYLEHEXAGON COUNTERSUNK
HEIGHT0.9990 INCHES MINIMUM AND 0.9995 INCHES MAXIMUM IN
BOTTOM COUNTERSINK DIAMETER0.621 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN
MATERIALSTEEL COMP 322 OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7251251?
7251251 is a PIN,STRAIGHT,HEADED.
What is the NSN for 7251251?
7251251 is cataloged in the U.S. Government catalog under NSN 5315-01-613-3853. 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.