PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1801-770375PC24-27T029Shackle

Naval Ship Systems Command · NSN 4030-00-290-6584 · FSC 4030 · No Item Name Available
Verified by PartsTable
NSN 4030-00-290-6584 — this item is cataloged by the U.S. Government under National Stock Number 4030-00-290-6584. Primary manufacturer part number: S1801-770375PC24-27T029.
Features
  • Shackle — FSC 4030
  • Material: STEEL
  • End Condition: THREADED
  • Material Diameter: 4.875 INCHES NOMINAL IN
  • Locking Device Type: COTTER PIN AND NUT
  • Closure Head Style: HEXAGON
  • Nondefinitive Spec/std Data: 1 TABLE AND 3 GROUP
  • Inside Length: 7.250 INCHES NOMINAL IN
Applications
  • Applications requiring Steel construction
General Description

The Shackle, cataloged under National Stock Number 4030-00-290-6584, is classified within Federal Supply Class 4030 (No Item Name Available) of the Rope, Cable, Chain, and Fittings group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4030-00-290-6584
Primary Part NumberS1801-770375PC24-27T029
Item NameShackle
FSC / FSG4030 / 40 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
MaterialSTEEL
End ConditionTHREADED
Material Diameter4.875 INCHES NOMINAL IN
Locking Device TypeCOTTER PIN AND NUT
Closure Head StyleHEXAGON
Nondefinitive Spec/std Data1 TABLE AND 3 GROUP
Inside Length7.250 INCHES NOMINAL IN
Opening Width3.625 INCHES NOMINAL IN
Style DesignatorANTITOPPLING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4010-00-149-5615 INTERCHANGEABLE
Chain,stud Link
4030-00-164-6682 INTERCHANGEABLE
Shackle
4030-00-263-8903 INTERCHANGEABLE
Swivel,eye and Link
4030-00-266-7421804-860234 PC2-5&16 INTERCHANGEABLE
Hook,pelican
Naval Ship Systems Command
4010-00-282-25454010-1 INTERCHANGEABLE
Chain Assembly,single Leg
Defense Logistics Agency Dba Defense Supply Center Philadelphia
4030-00-286-2680S2605-921734PC1T03 INTERCHANGEABLE
Shackle
Naval Ship Systems Command
Cross-Reference Index
Part NumberManufacturer
S1801-770375PC24-27T029 Naval Ship Systems Command (USA)
MILW82099 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4010-00-149-5615INTERCHANGEABLE
CHAIN,STUD LINK
4030-00-164-6682INTERCHANGEABLE
SHACKLE
4030-00-263-8903INTERCHANGEABLE
SWIVEL,EYE AND LINK
4030-00-266-7421INTERCHANGEABLE
HOOK,PELICAN
804-860234 PC2-5&16
4010-00-282-2545INTERCHANGEABLE
CHAIN ASSEMBLY,SINGLE LEG
4010-1
4030-00-286-2680INTERCHANGEABLE
SHACKLE
S2605-921734PC1T03

Frequently Asked Questions

What is NSN 4030-00-290-6584?

NSN 4030-00-290-6584 is a Shackle, manufactured by Naval Ship Systems Command, classified under FSC 4030 (No Item Name Available). Status: active.

What are the part numbers for NSN 4030-00-290-6584?

NSN 4030-00-290-6584 has 2 cross-referenced part numbers: S1801-770375PC24-27T029 (Naval Ship Systems Command), MILW82099 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4030-00-290-6584?

There are 6 known substitutes for 4030-00-290-6584: 4010-00-149-5615, 4030-00-164-6682, 4030-00-263-8903 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S1801-770375PC24-27T029?

Key specifications for S1801-770375PC24-27T029: Material: STEEL; End Condition: THREADED; Material Diameter: 4.875 INCHES NOMINAL IN; Locking Device Type: COTTER PIN AND NUT. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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