PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

402-21Coupler,litter,sea-

Lifesaving Systems Llc · NSN 6530-01-472-3863 · FSC 6530 · No Item Name Available
Verified by PartsTable
NSN 6530-01-472-3863 — this item is cataloged by the U.S. Government under National Stock Number 6530-01-472-3863. Primary manufacturer part number: 402-21.
Features
  • Coupler,litter,sea- — FSC 6530
  • General Characteristics Item Description: COUPLER, LITTER, SEA-AIR; 304 STAINLESS STEEL, 1.500 INCH OD, 0.112 WALL THICKNESS, 5.250 INCHES LONG IN
  • 2 verified cross-references
  • Primary manufacturer: Lifesaving Systems Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupler,litter,sea-, cataloged under National Stock Number 6530-01-472-3863, is classified within Federal Supply Class 6530 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Lifesaving Systems Llc. Government technical data includes 1 verified specification, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6530-01-472-3863
Primary Part Number402-21
Item NameCoupler,litter,sea-
FSC / FSG6530 / 65 — No Item Name Available
ManufacturerLifesaving Systems Llc
StatusACTIVE
General Characteristics Item DescriptionCOUPLER, LITTER, SEA-AIR; 304 STAINLESS STEEL, 1.500 INCH OD, 0.112 WALL THICKNESS, 5.250 INCHES LONG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 9
3455-00-230-7026305-24 INTERCHANGEABLE
Cutter,milling,side
Kennametal Inc. Div Kennametal Industrial Products Group
5930-00-273-0778TH3221 INTERCHANGEABLE
Switch,box
General Electric Co Electrical Distribution and Control
5330-00-291-6371162G12 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5999-00-417-041340-221 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
5305-00-840-6211 INTERCHANGEABLE
Screw,machine
5962-01-225-674940221 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5310-01-306-505540221 INTERCHANGEABLE
Washer,spring Tension
Bell Intl Inc
2910-01-539-719740221 INTERCHANGEABLE
Pump,fuel,metering and Distribut
Hdt Expeditionary Systems Inc
6680-01-550-810540221/61-999-000 INTERCHANGEABLE
Indicator,sight,liquid
Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Curtiss-Wright / Nu-Torque
Cross-Reference Index
Part NumberManufacturer
402-21 PRIMARY Lifesaving Systems Llc (USA)
99-0316 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
Related Parts
3455-00-230-7026INTERCHANGEABLE
CUTTER,MILLING,SIDE
305-24
5930-00-273-0778INTERCHANGEABLE
SWITCH,BOX
TH3221
5330-00-291-6371INTERCHANGEABLE
SEAL,PLAIN ENCASED
162G12
5999-00-417-0413INTERCHANGEABLE
CONTACT,ELECTRICAL
40-221
5305-00-840-6211INTERCHANGEABLE
SCREW,MACHINE
5962-01-225-6749INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
40221
5310-01-306-5055INTERCHANGEABLE
WASHER,SPRING TENSION
40221
2910-01-539-7197INTERCHANGEABLE
PUMP,FUEL,METERING AND DISTRIBUT
40221
6680-01-550-8105INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
40221/61-999-000

Frequently Asked Questions

What is NSN 6530-01-472-3863?

NSN 6530-01-472-3863 is a Coupler,litter,sea-, manufactured by Lifesaving Systems Llc, classified under FSC 6530 (No Item Name Available). Status: active.

What are the part numbers for NSN 6530-01-472-3863?

NSN 6530-01-472-3863 has 2 cross-referenced part numbers: 402-21 (Lifesaving Systems Llc), 99-0316 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia).

What NSN replaces 6530-01-472-3863?

There are 9 known substitutes for 6530-01-472-3863: 3455-00-230-7026, 5930-00-273-0778, 5330-00-291-6371 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 402-21?

Key specifications for 402-21: End Item Identification: LITTER, RIGID, SEA-AIR, MEDICAL EVACUATION; MODEL 402, NSN 01-187-0104; General Characteristics Item Description: COUPLER, LITTER, SEA-AIR; 304 STAINLESS STEEL, 1.500 INCH OD, 0.112 WALL THICKNESS, 5.250 INCHES LONG IN; Part Name Assigned by Controlling Agency: COUPLER LITTER SEA-AIR 304 SS 1.5IN OD .112WALL THICK 5.25IN LG IN. 3 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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