PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25-008O-Ring

Hii Unmanned Systems, Inc · NSN 5331-01-561-1018 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-561-1018 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-561-1018. Primary manufacturer part number: 25-008.
Features
  • O-Ring — FSC 5331
  • 3 verified cross-references
  • Primary manufacturer: Hii Unmanned Systems, Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-561-1018, is classified within Federal Supply Class 5331 (O-Ring) 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
NSN5331-01-561-1018
Primary Part Number25-008
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerHii Unmanned Systems, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2825-00-125-7193250-08 INTERCHANGEABLE
Operating Assembly
Siemens Energy, Inc.
5360-00-359-5299212-1105 INTERCHANGEABLE
Spring,special
Cummins Power Generation Inc.
5330-00-400-849812407 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5330-00-538-523925008 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5950-00-905-475125008 INTERCHANGEABLE
Reactor
Magnetika Inc
4130-01-157-019497108388 INTERCHANGEABLE
Filter Element,air Conditioning
Research Products Corp
5310-01-186-764025008 INTERCHANGEABLE
Washer,lock
Barksdale, Inc
4520-01-193-191125008 INTERCHANGEABLE
Heating Element,electrical,nonim
Build-All Corp
5330-01-217-390325008 INTERCHANGEABLE
Packing Assembly
Twg Canada Consolidated Inc
4810-01-308-1663 INTERCHANGEABLE
Valve,solenoid
Cross-Reference Index
Part NumberManufacturer
25-008 J. Bornhoft Industriegerate Gesellschaft Mit Beschrankter Haftung (DEU)
25-008 Hydroid, Llc (USA)
25-008 PRIMARY Hii Unmanned Systems, Inc (USA)
Related Parts
2825-00-125-7193INTERCHANGEABLE
OPERATING ASSEMBLY
250-08
5360-00-359-5299INTERCHANGEABLE
SPRING,SPECIAL
212-1105
5330-00-400-8498INTERCHANGEABLE
SEAL,PLAIN ENCASED
12407
5330-00-538-5239INTERCHANGEABLE
GASKET
25008
5950-00-905-4751INTERCHANGEABLE
REACTOR
25008
4130-01-157-0194INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
97108388
5310-01-186-7640INTERCHANGEABLE
WASHER,LOCK
25008
4520-01-193-1911INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
25008
5330-01-217-3903INTERCHANGEABLE
PACKING ASSEMBLY
25008
4810-01-308-1663INTERCHANGEABLE
VALVE,SOLENOID
5360-01-334-7623INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
25008
6515-01-597-9486INTERCHANGEABLE
SYRINGE AND NEEDLE,HYPODERMIC
309301

Frequently Asked Questions

What is NSN 5331-01-561-1018?

NSN 5331-01-561-1018 is a O-Ring, manufactured by Hii Unmanned Systems, Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-561-1018?

NSN 5331-01-561-1018 has 3 cross-referenced part numbers: 25-008 (J. Bornhoft Industriegerate Gesellschaft Mit Beschrankter Haftung), 25-008 (Hydroid, Llc), 25-008 (Hii Unmanned Systems, Inc).

What NSN replaces 5331-01-561-1018?

There are 12 known substitutes for 5331-01-561-1018: 2825-00-125-7193, 5360-00-359-5299, 5330-00-400-8498 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25-008?

Key specifications for 25-008: Special Features: FUSE, 6.3A, 250V, TIME LAG; SIZE: .205 INCH OD X .787 INCH LENGTH V. 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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