PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25-010O-Ring

Hii Unmanned Systems, Inc · NSN 5331-01-561-1019 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-561-1019 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-561-1019. Primary manufacturer part number: 25-010.
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 5331-01-561-1019, 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
NSN5331-01-561-1019
Primary Part Number25-010
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerHii Unmanned Systems, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3805-00-163-565825010 INTERCHANGEABLE
Pulley
Komatsu America Corporation
5330-00-217-8668F145U101 INTERCHANGEABLE
Gasket
Sealcraft Corporation
5330-00-815-149262002 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5950-00-865-128425-010 INTERCHANGEABLE
Reactor
Natel Engineering Company, Llc Div Natel Chatsworth Division
5950-00-905-476621001566 INTERCHANGEABLE
Reactor
Sypris Electronics, Llc
6520-01-119-63849004798 INTERCHANGEABLE
Caliper,dental
Henry Schein, Inc.
2825-01-177-374425010-VTR401-2 INTERCHANGEABLE
Ring,shrink
Abb Inc.
5330-01-255-9275 INTERCHANGEABLE
Seal,plain
6515-01-294-554225010 INTERCHANGEABLE
Drill,twist,bone
Nobelpharma Usa Inc
5998-01-345-1526 INTERCHANGEABLE
Printed Circuit Board
Cross-Reference Index
Part NumberManufacturer
25-010 PRIMARY Hii Unmanned Systems, Inc (USA)
25-010 Hydroid, Llc (USA)
25-010 J. Bornhoft Industriegerate Gesellschaft Mit Beschrankter Haftung (DEU)
Related Parts
3805-00-163-5658INTERCHANGEABLE
PULLEY
25010
5330-00-217-8668INTERCHANGEABLE
GASKET
F145U101
5330-00-815-1492INTERCHANGEABLE
SEAL,PLAIN ENCASED
62002
5950-00-865-1284INTERCHANGEABLE
REACTOR
25-010
5950-00-905-4766INTERCHANGEABLE
REACTOR
21001566
6520-01-119-6384INTERCHANGEABLE
CALIPER,DENTAL
9004798
2825-01-177-3744INTERCHANGEABLE
RING,SHRINK
25010-VTR401-2
5330-01-255-9275INTERCHANGEABLE
SEAL,PLAIN
6515-01-294-5542INTERCHANGEABLE
DRILL,TWIST,BONE
25010
5998-01-345-1526INTERCHANGEABLE
PRINTED CIRCUIT BOARD
6650-01-459-3946INTERCHANGEABLE
FIXTURE,TEST,OPTICAL EQUIPMENT
25010
5120-01-528-3916INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 5331-01-561-1019?

NSN 5331-01-561-1019 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 5331-01-561-1019?

NSN 5331-01-561-1019 has 3 cross-referenced part numbers: 25-010 (Hii Unmanned Systems, Inc), 25-010 (Hydroid, Llc), 25-010 (J. Bornhoft Industriegerate Gesellschaft Mit Beschrankter Haftung).

What NSN replaces 5331-01-561-1019?

There are 12 known substitutes for 5331-01-561-1019: 3805-00-163-5658, 5330-00-217-8668, 5330-00-815-1492 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25-010?

Key specifications for 25-010: Special Features: BUNA N O-RING 010; SIZE: 1/4 INCH ID X 3/8 INCH OD X 1/16 INCH WIDTH IN. 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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