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Technical Data Sheet
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1109-N — SHEAVE,GUIDE,VERTIC

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1109-N: SHEAVE,GUIDE,VERTIC.

The SHEAVE,GUIDE,VERTIC is a the manufacturer industrial component. Key specifications include end_item_identification: BUOY HANDLING SYSTEM P/N 49A BUSL-556-004 ONBOARD 49 FT BUSL COAST GUARD VESSELS A. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-621-4919, 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
1109-N
NSN: 5310-00-621-4919
NIINs: 006214919, 014804085
FSC: 5310 — Nuts and Washers
CAGE: 830Q4 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
end_item_identificationBUOY HANDLING SYSTEM P/N 49A BUSL-556-004 ONBOARD 49 FT BUSL COAST GUARD VESSELS A
NSN5310-00-621-4919
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1109-N · 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
•
OVERALL DIAMETER: 2.500 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: CORK OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 1.687 INCHES NOMINAL IN
•
THICKNESS: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER2.500 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIALCORK OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.687 INCHES NOMINAL IN
THICKNESS0.375 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
HL20656PC165Reference 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 1109-N?
1109-N is a SHEAVE,GUIDE,VERTIC.
What parts can replace 1109-N?
There is 1 known substitute for 1109-N: HL20656PC165. Substitute compatibility should be verified for your specific system.
What is the NSN for 1109-N?
1109-N is cataloged in the U.S. Government catalog under NSN 5310-00-621-4919. 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.