PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-036Ring,retaining

Hii Unmanned Systems, Inc · NSN 5325-01-561-7805 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-561-7805 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-561-7805. Primary manufacturer part number: 21-036.
Features
  • Ring,retaining — FSC 5325
  • 3 verified cross-references
  • Primary manufacturer: Hii Unmanned Systems, Inc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-561-7805, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hii Unmanned Systems, Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-561-7805
Primary Part Number21-036
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerHii Unmanned Systems, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-159-126512Z7001-2126 INTERCHANGEABLE
Terminal,lug
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5945-00-199-567821-019 INTERCHANGEABLE
Relay,electromagnetic
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5330-00-429-01182-1036-2 INTERCHANGEABLE
Packing,preformed
Specialty Cable Corp Dba Specialty Cable Corp
6685-00-520-9695 INTERCHANGEABLE
Core,indicator
5935-00-552-45088499316 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Aviation and Missile Command
5330-01-034-656715FT156 INTERCHANGEABLE
Seal,plain Encased
Oshkosh Defense Llc
2530-01-066-9585226721 INTERCHANGEABLE
Disc,brake
Allied Systems Company Dba Allied Systems Co
5340-01-174-275221-036 INTERCHANGEABLE
Clamp,loop
Hess Manufacturing Inc Div Blast-It-All
5985-01-212-2621 INTERCHANGEABLE
Module,band S Antenna
4720-01-274-922321036 INTERCHANGEABLE
Hose Assembly,nonmetallic
Ritchie Engineering Co Inc
Cross-Reference Index
Part NumberManufacturer
21-036 J. Bornhoft Industriegerate Gesellschaft Mit Beschrankter Haftung (DEU)
21-036 PRIMARY Hii Unmanned Systems, Inc (USA)
21-036 Hydroid, Llc (USA)
Related Parts
5940-00-159-1265INTERCHANGEABLE
TERMINAL,LUG
12Z7001-2126
5945-00-199-5678INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
21-019
5330-00-429-0118INTERCHANGEABLE
PACKING,PREFORMED
2-1036-2
6685-00-520-9695INTERCHANGEABLE
CORE,INDICATOR
5935-00-552-4508INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
8499316
5330-01-034-6567INTERCHANGEABLE
SEAL,PLAIN ENCASED
15FT156
2530-01-066-9585INTERCHANGEABLE
DISC,BRAKE
226721
5340-01-174-2752INTERCHANGEABLE
CLAMP,LOOP
21-036
5985-01-212-2621INTERCHANGEABLE
MODULE,BAND S ANTENNA
4720-01-274-9223INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
21036
9150-01-413-9238INTERCHANGEABLE
GREASE,AIRCRAFT ORDNANCE
21030
6515-01-591-2829INTERCHANGEABLE
SUCTION APPARATUS,OROPHARYNGEAL,
880061

Frequently Asked Questions

What is NSN 5325-01-561-7805?

NSN 5325-01-561-7805 is a Ring,retaining, manufactured by Hii Unmanned Systems, Inc, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-561-7805?

NSN 5325-01-561-7805 has 3 cross-referenced part numbers: 21-036 (J. Bornhoft Industriegerate Gesellschaft Mit Beschrankter Haftung), 21-036 (Hii Unmanned Systems, Inc), 21-036 (Hydroid, Llc).

What NSN replaces 5325-01-561-7805?

There are 12 known substitutes for 5325-01-561-7805: 5940-00-159-1265, 5945-00-199-5678, 5330-00-429-0118 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-036?

Key specifications for 21-036: Part Name Assigned by Controlling Agency: RING. 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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