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3441784 — PIN,HOLDBACK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3441784: PIN,HOLDBACK.

The PIN,HOLDBACK is a the manufacturer industrial component. Key specifications include end_item_identification: W/S: HELICOPTER, ADVANCE ATTACK, AH-1W; HELICOPTER, COBRA/TOW, AH SERIES W, general_characteristics_item_description: ALUMINUM ALLOY,ANODIZE,2.590 IN. LG IN.

This part is cataloged in the U.S. Government catalog under NSN 5315-01-007-3803, 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
3441784
NSN: 5315-01-007-3803
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 16623 — UNITED STATES DEPARTMENT OF THE NAVY DBA NAVAL UNDERSEA WARFARE CTR DIV (USA)
SPECIFICATIONS
end_item_identificationW/S: HELICOPTER, ADVANCE ATTACK, AH-1W; HELICOPTER, COBRA/TOW, AH SERIES W
general_characteristics_item_descriptionALUMINUM ALLOY,ANODIZE,2.590 IN. LG IN
NSN5315-01-007-3803
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3441784 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: ALUMINUM ALLOY,ANODIZE,2.590 IN. LG IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONALUMINUM ALLOY,ANODIZE,2.590 IN. LG IN
END ITEM IDENTIFICATIONW/S: HELICOPTER, ADVANCE ATTACK, AH-1W; HELICOPTER, COBRA/TOW, AH SERIES W
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
890716Same 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 3441784?
3441784 is a PIN,HOLDBACK.
What parts can replace 3441784?
There is 1 known substitute for 3441784: 890716. Substitute compatibility should be verified for your specific system.
What is the NSN for 3441784?
3441784 is cataloged in the U.S. Government catalog under NSN 5315-01-007-3803. 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.