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686972 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

686972: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.290 INCHES NOMINAL IN, diameter: 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, material: STEEL COMP O1 OVERALL, head_style: FLAT FILLISTER, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL, style_designator: STRAIGHT. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-031-8603, 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
686972
NSN: 5315-01-031-8603
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 49956 — RAYTHEON COMPANY DIV CORP (USA)
SPECIFICATIONS
height0.290 INCHES NOMINAL IN
diameter0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
materialSTEEL COMP O1 OVERALL
head_styleFLAT FILLISTER
hardness_rating40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSTRAIGHT
pin_head_diameter0.625 INCHES NOMINAL IN
under_head_length0.782 INCHES NOMINAL IN
NSN5315-01-031-8603
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 686972 · 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
•
UNDER HEAD LENGTH: 0.782 INCHES NOMINAL IN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.625 INCHES NOMINAL IN
•
DIAMETER: 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
HEAD STYLE: FLAT FILLISTER
•
HEIGHT: 0.290 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP O1 OVERALL
TECHNICAL CHARACTERISTICS
UNDER HEAD LENGTH0.782 INCHES NOMINAL IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.625 INCHES NOMINAL IN
DIAMETER0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
HEAD STYLEFLAT FILLISTER
HEIGHT0.290 INCHES NOMINAL IN
MATERIALSTEEL COMP O1 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 686972?
686972 is a PIN,STRAIGHT,HEADED.
What is the NSN for 686972?
686972 is cataloged in the U.S. Government catalog under NSN 5315-01-031-8603. 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.