NSN 5331-01-456-3729 · NIIN 014563729 · Part number PRS21-6
Sub Aquatics, Inc. Dba Breathing Air Systems Div Sub-Aquatics Inc, Dba Breathing Air Systems · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 63054
Government record, cited
NSN 5331-01-456-3729 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-456-3729. Manufacturer of record part number: PRS21-6.
Also searched as5331-01-456-3729 ·
5331014563729 ·
NIIN 014563729 ·
01-456-3729 ·
FSC 5331 O-ring · CAGE 63054 · PRS21-6
Manufacturer of record: Sub Aquatics, Inc. Dba Breathing Air Systems Div Sub-Aquatics Inc, Dba Breathing Air Systems
Identification
NSN: 5331-01-456-3729
NIIN: 014563729
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: PRS21-6
Manufacturer: Sub Aquatics, Inc. Dba Breathing Air Systems Div Sub-Aquatics Inc, Dba Breathing Air Systems
General Description
The O-Ring, cataloged under National Stock Number 5331-01-456-3729, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sub Aquatics, Inc. Dba Breathing Air Systems Div Sub-Aquatics Inc, Dba Breathing Air Systems. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5331-01-456-3729
Primary Part Number
PRS21-6
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Sub Aquatics, Inc. Dba Breathing Air Systems Div Sub-Aquatics Inc, Dba Breathing Air Systems
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971
O-RING
5331-00-001-1979
O-RING
5331-00-001-3904
O-RING
5331-00-001-3905
O-RING
5331-00-001-3906
O-RING
5331-00-001-3908
O-RING
5331-00-001-3923
O-RING
5331-00-001-3924
O-RING
Related Parts in Hardware and Abrasives
5331-00-001-1971
O-RING
5331-00-001-1979
O-RING
5331-00-001-3904
O-RING
5331-00-001-3905
O-RING
5331-00-001-3906
O-RING
5331-00-001-3908
O-RING
216-2229
5331-00-001-3923
O-RING
216-2460
5331-00-001-3924
O-RING
GD2821-11
Frequently Asked Questions
What is NSN 5331-01-456-3729?
NSN 5331-01-456-3729 is a O-Ring, manufactured by Sub Aquatics, Inc. Dba Breathing Air Systems Div Sub-Aquatics Inc, Dba Breathing Air Systems, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-456-3729?
NSN 5331-01-456-3729 has 2 manufacturer part numbers on file: PRS21-6 (Sub Aquatics, Inc. Dba Breathing Air Systems Div Sub-Aquatics Inc, Dba Breathing Air Systems), PRS21-6 (Breathing Air Systems).
What are the specifications of PRS21-6?
Key specifications for PRS21-6: End Item Identification: PREPROVISIONING SUPPORT NAVICP IS POEE. 0 specifications are documented in the U.S. Government catalog.
Is NSN 5331-01-456-3729 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.