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NSN 5331-01-733-8470Government record, cited
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O-Ring5331-01-733-8470

NSN 5331-01-733-8470 · NIIN 017338470 · Part number M4637-3079-PC NO-7
Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 0ASY6
Government record, cited
NSN 5331-01-733-8470 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-733-8470. Manufacturer of record part number: M4637-3079-PC NO-7.
Also searched as  5331-01-733-8470 · 5331017338470 · NIIN 017338470 · 01-733-8470 · FSC 5331 O-ring · CAGE 0ASY6 · M4637-3079-PC NO-7 · ARP-221P · M4637-3079
Nearby stock numbers  ·
SECTION O-RING CROSS SECTION
5331-01-733-8470 — O-ring
Features
  • O-Ring — FSC 5331
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
Identification
  • NSN: 5331-01-733-8470
  • NIIN: 017338470
  • FSC: 5331 — O-ring
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: M4637-3079-PC NO-7
  • Manufacturer: Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
General Description

The O-Ring, cataloged under National Stock Number 5331-01-733-8470, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-ring (FSG 53)
ManufacturersDerbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (CAGE 0ASY6)
Technical Specifications
ParameterValue
NSN5331-01-733-8470
Primary Part NumberM4637-3079-PC NO-7
Item NameO-Ring
FSC / FSG5331 / 53 — O-ring
ManufacturerDerbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5330-01-733-8492M4637-3079-PC NO-6 POSSIBLE MATCH
RETAINER,PACKING
Possible match (shared part number)Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
5330-01-733-8502M4637-3079-PC NO-8 POSSIBLE MATCH
SEAL,PLAIN
Possible match (shared part number)Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
4730-01-733-8517M4637-3079-PC NO-5 POSSIBLE MATCH
PACKING NUT
Possible match (shared part number)Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
2805-01-733-9764M4637-3079-PC NO-4 POSSIBLE MATCH
LOCK,VALVE SPRING RETAINER
Possible match (shared part number)Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
Cross-Reference Index
Part NumberManufacturer
ARP-221P Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA)
M4637-3079-PC NO-7 PRIMARY Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA)
Reference documents
ReferenceMeaning
M4637-3079 D/9 Drawing number reference only
Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
Related Parts
5330-01-733-8492POSSIBLE MATCH
RETAINER,PACKING
M4637-3079-PC NO-6
5330-01-733-8502POSSIBLE MATCH
SEAL,PLAIN
M4637-3079-PC NO-8
4730-01-733-8517POSSIBLE MATCH
PACKING NUT
M4637-3079-PC NO-5
2805-01-733-9764POSSIBLE MATCH
LOCK,VALVE SPRING RETAINER
M4637-3079-PC NO-4

Frequently Asked Questions

What is NSN 5331-01-733-8470?

NSN 5331-01-733-8470 is a O-Ring, manufactured by Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc, classified under FSC 5331, O-ring. Status: active.

What part numbers are listed for NSN 5331-01-733-8470?

NSN 5331-01-733-8470 has 2 manufacturer part numbers on file: ARP-221P (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc), M4637-3079-PC NO-7 (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc).

What NSN replaces 5331-01-733-8470?

4 possible matches (shared part number, not a government interchangeability claim): 5330-01-733-8492, 5330-01-733-8502, 4730-01-733-8517. Verify interchangeability with system specifications before substitution.

Is NSN 5331-01-733-8470 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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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