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7985571 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7985571: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, diameter: 1.495 INCHES MINIMUM AND 1.497 INCHES MAXIMUM IN, material: STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8745 OVERALL, head_style: ROUND W/WRENCH FLATS, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL, special_features: 0.250 IN. W BY 4.250 IN.

LG GROOVES ALONG LENGTH IN. This part is cataloged in the U.S. Government catalog under NSN 5315-00-798-5571, 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
7985571
NSN: 5315-00-798-5571
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
height0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
diameter1.495 INCHES MINIMUM AND 1.497 INCHES MAXIMUM IN
materialSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8745 OVERALL
head_styleROUND W/WRENCH FLATS
hardness_rating28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
special_features0.250 IN. W BY 4.250 IN. LG GROOVES ALONG LENGTH IN
style_designatorSTRAIGHT
pin_head_diameter2.109 INCHES MINIMUM AND 2.141 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
under_head_length4.547 INCHES MINIMUM AND 4.578 INCHES MAXIMUM IN
width_across_flats1.834 INCHES MINIMUM AND 1.844 INCHES MAXIMUM IN
first_hole_diameter0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
NSN5315-00-798-5571
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7985571 · 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
•
WIDTH ACROSS FLATS: 1.834 INCHES MINIMUM AND 1.844 INCHES MAXIMUM IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
UNDER HEAD LENGTH: 4.547 INCHES MINIMUM AND 4.578 INCHES MAXIMUM IN
•
FIRST HOLE DIAMETER: 0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 2.109 INCHES MINIMUM AND 2.141 INCHES MAXIMUM IN
•
DIAMETER: 1.495 INCHES MINIMUM AND 1.497 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.834 INCHES MINIMUM AND 1.844 INCHES MAXIMUM IN
HOLE ARRANGEMENT STYLEONE END DRILLED
UNDER HEAD LENGTH4.547 INCHES MINIMUM AND 4.578 INCHES MAXIMUM IN
FIRST HOLE DIAMETER0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER2.109 INCHES MINIMUM AND 2.141 INCHES MAXIMUM IN
DIAMETER1.495 INCHES MINIMUM AND 1.497 INCHES MAXIMUM IN
HEAD STYLEROUND W/WRENCH FLATS
HEIGHT0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
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 7985571?
7985571 is a PIN,STRAIGHT,HEADED.
What is the NSN for 7985571?
7985571 is cataloged in the U.S. Government catalog under NSN 5315-00-798-5571. 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.