PartsTable
Technical Data Sheet
Download PDF

31AX500 — PIN,SPRING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

31AX500: PIN,SPRING.

The PIN,SPRING is a the manufacturer industrial component. Key specifications include diameter: 0.187 INCHES NOMINAL IN, material: STEEL OVERALL, overall_length: 1.125 INCHES NOMINAL IN, style_designator: SLOTTED, surface_treatment: CARBON OVERALL, part_name_assigned_by_controlling_agency: PINS, STRAIGHT-SLOTTED-SPRING. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-552-7522, 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
31AX500
NSN: 5315-01-552-7522
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
diameter0.187 INCHES NOMINAL IN
materialSTEEL OVERALL
overall_length1.125 INCHES NOMINAL IN
style_designatorSLOTTED
surface_treatmentCARBON OVERALL
part_name_assigned_by_controlling_agencyPINS, STRAIGHT-SLOTTED-SPRING
NSN5315-01-552-7522
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 31AX500 · 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
•
STYLE DESIGNATOR: SLOTTED
•
DIAMETER: 0.187 INCHES NOMINAL IN
•
SURFACE TREATMENT: CARBON OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSLOTTED
DIAMETER0.187 INCHES NOMINAL IN
OVERALL LENGTH1.125 INCHES NOMINAL IN
SURFACE TREATMENTCARBON OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYPINS, STRAIGHT-SLOTTED-SPRING
MATERIALSTEEL 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 1
25108760Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 31AX500?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 31AX500?
31AX500 is a PIN,SPRING.
What parts can replace 31AX500?
There is 1 known substitute for 31AX500: 25108760. Substitute compatibility should be verified for your specific system.
What is the NSN for 31AX500?
31AX500 is cataloged in the U.S. Government catalog under NSN 5315-01-552-7522. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 31AX500

✓ 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.