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8437779 — PIN,STRAIGHT,THREADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8437779: PIN,STRAIGHT,THREADED.

The PIN,STRAIGHT,THREADED is a the manufacturer industrial component. Key specifications include thread_class: 2A A, thread_length: 0.300 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, surface_finish: 125.0 MICROINCHES OVERALL, pin_grip_length: 2.640 INCHES MINIMUM AND 2.670 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-239-5866, 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
8437779
NSN: 5315-00-239-5866
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
thread_class2A A
thread_length0.300 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
surface_finish125.0 MICROINCHES OVERALL
pin_grip_length2.640 INCHES MINIMUM AND 2.670 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
first_end_locationSHANK END
pin_overall_length2.970 INCHES MINIMUM AND 3.030 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
pin_overall_diameter0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
thread_series_designatorUNF
NSN5315-00-239-5866
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8437779 · 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
•
SURFACE FINISH: 125.0 MICROINCHES OVERALL
•
FIRST END LOCATION: SHANK END
•
THREAD LENGTH: 0.300 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
PIN OVERALL DIAMETER: 0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 2.970 INCHES MINIMUM AND 3.030 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
PIN GRIP LENGTH: 2.640 INCHES MINIMUM AND 2.670 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES OVERALL
FIRST END LOCATIONSHANK END
THREAD LENGTH0.300 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
PIN OVERALL DIAMETER0.3650 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
PIN OVERALL LENGTH2.970 INCHES MINIMUM AND 3.030 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
PIN GRIP LENGTH2.640 INCHES MINIMUM AND 2.670 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A A
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
5315002395866Reference 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 8437779?
8437779 is a PIN,STRAIGHT,THREADED.
What parts can replace 8437779?
There is 1 known substitute for 8437779: 5315002395866. Substitute compatibility should be verified for your specific system.
What is the NSN for 8437779?
8437779 is cataloged in the U.S. Government catalog under NSN 5315-00-239-5866. 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.