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11581606 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

11581606: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, special_features: OVERALL LENGTH 1.350 INCHES IN, nominal_thread_size: 0.190 INCHES IN, end_item_identification: 1025-99-411-1447; M777E1 155MM HOWITZER MM, thread_series_designator: UNF. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-528-4236, 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
11581606
NSN: 5315-01-528-4236
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 1NUW7 — US ARMY BENET LABORATORIES RDAR-WSB-O (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_featuresOVERALL LENGTH 1.350 INCHES IN
nominal_thread_size0.190 INCHES IN
end_item_identification1025-99-411-1447; M777E1 155MM HOWITZER MM
thread_series_designatorUNF
NSN5315-01-528-4236
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11581606 · 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
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNF
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.190 INCHES IN
SPECIAL FEATURESOVERALL LENGTH 1.350 INCHES IN
END ITEM IDENTIFICATION1025-99-411-1447; M777E1 155MM HOWITZER MM
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNF
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
777.13.017Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11581606?
11581606 is a PIN,SHOULDER,HEADLESS.
What parts can replace 11581606?
There is 1 known substitute for 11581606: 777.13.017. Substitute compatibility should be verified for your specific system.
What is the NSN for 11581606?
11581606 is cataloged in the U.S. Government catalog under NSN 5315-01-528-4236. 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.