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AD-31972-1 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AD-31972-1: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, pin_overall_length: 7.500 INCHES NOMINAL IN, first_hole_diameter: 0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN, pin_overall_diameter: 0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN, second_hole_diameter: 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN, distance_from_centerline_of_hole_to_end_of_pin: 1.440 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-033-4406, 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
AD-31972-1
NSN: 5315-01-033-4406
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
pin_overall_length7.500 INCHES NOMINAL IN
first_hole_diameter0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
pin_overall_diameter0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN
second_hole_diameter0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
distance_from_centerline_of_hole_to_end_of_pin1.440 INCHES NOMINAL IN
NSN5315-01-033-4406
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AD-31972-1 · 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
•
FIRST HOLE DIAMETER: 0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
•
PIN OVERALL DIAMETER: 0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 7.500 INCHES NOMINAL IN
•
SECOND HOLE DIAMETER: 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN: 1.440 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FIRST HOLE DIAMETER0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
PIN OVERALL DIAMETER0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN
PIN OVERALL LENGTH7.500 INCHES NOMINAL IN
SECOND HOLE DIAMETER0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN1.440 INCHES NOMINAL 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 1
AD31747PC14Reference 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 AD-31972-1?
AD-31972-1 is a PIN,STRAIGHT,HEADLESS.
What parts can replace AD-31972-1?
There is 1 known substitute for AD-31972-1: AD31747PC14. Substitute compatibility should be verified for your specific system.
What is the NSN for AD-31972-1?
AD-31972-1 is cataloged in the U.S. Government catalog under NSN 5315-01-033-4406. 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.