PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HDWR0257Coupler Locking Pin

Safe Boats International Llc · NSN 4730-01-552-9671 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-552-9671 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-552-9671. Primary manufacturer part number: HDWR0257.
Features
  • Coupler Locking Pin — FSC 4730
  • 4 verified cross-references
  • Primary manufacturer: Safe Boats International Llc
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Coupler Locking Pin, cataloged under National Stock Number 4730-01-552-9671, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Safe Boats International Llc. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-552-9671
Primary Part NumberHDWR0257
Item NameCoupler Locking Pin
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSafe Boats International Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
1560-00-561-6395751010-3 INTERCHANGEABLE
Connector,ram Air Compartment
Lockheed Martin Corp
5962-01-160-6529AD590LH INTERCHANGEABLE
Microcircuit,linear
Analog Devices, Inc. Div Corporate Headquarters
Cross-Reference Index
Part NumberManufacturer
751010-1 Paxton Co (USA)
751010 E Z Loader Boat Trailers, Inc. (USA)
751010-1 Sea-Dog Line Div of Sneve-Nysether Inc (USA)
HDWR0257 PRIMARY Safe Boats International Llc (USA)
Related Parts
1560-00-561-6395INTERCHANGEABLE
CONNECTOR,RAM AIR COMPARTMENT
751010-3
5962-01-160-6529INTERCHANGEABLE
MICROCIRCUIT,LINEAR
AD590LH

Frequently Asked Questions

What is NSN 4730-01-552-9671?

NSN 4730-01-552-9671 is a Coupler Locking Pin, manufactured by Safe Boats International Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-552-9671?

NSN 4730-01-552-9671 has 4 cross-referenced part numbers: 751010-1 (Paxton Co), 751010 (E Z Loader Boat Trailers, Inc.), 751010-1 (Sea-Dog Line Div of Sneve-Nysether Inc), HDWR0257 (Safe Boats International Llc).

What NSN replaces 4730-01-552-9671?

There are 2 known substitutes for 4730-01-552-9671: 1560-00-561-6395, 5962-01-160-6529. Verify interchangeability with system specifications before substitution.

What are the specifications of HDWR0257?

Key specifications for HDWR0257: End Item Identification: USCG RBS, SICR 620. 1 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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