PartsTable TECHNICAL DATA SHEET
NSN 5331-01-421-6116Government record, cited

O-Ring5331-01-421-6116

NSN 5331-01-421-6116 · NIIN 014216116 · Part number 702027
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 07524
Government record, cited
NSN 5331-01-421-6116 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-421-6116. Manufacturer of record part number: 702027.
Also searched as  5331-01-421-6116 · 5331014216116 · NIIN 014216116 · 01-421-6116 · FSC 5331 O-ring · CAGE 07524 · 702027
Nearby stock numbers  ·
Features
  • O-Ring — FSC 5331
  • 1 manufacturer part number on file
  • Manufacturer of record: Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Identification
  • NSN: 5331-01-421-6116
  • NIIN: 014216116
  • FSC: 5331 — O-ring
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 702027
  • Manufacturer: Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
General Description

The O-Ring, cataloged under National Stock Number 5331-01-421-6116, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares 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)
ManufacturersDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (CAGE 07524)
Technical Specifications
ParameterValue
NSN5331-01-421-6116
Primary Part Number702027
Item NameO-Ring
FSC / FSG5331 / 53 — O-ring
ManufacturerDover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
⇄ Related Items 1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3940-01-648-2684702027 POSSIBLE MATCH
BLOCK,TACKLE
Possible match (shared part number)The Crosby Group Llc Dba the Crosby Group
Cross-Reference Index
Part NumberManufacturer
702027 PRIMARY Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA)
Related Parts
3940-01-648-2684POSSIBLE MATCH
BLOCK,TACKLE
702027

Frequently Asked Questions

What is NSN 5331-01-421-6116?

NSN 5331-01-421-6116 is a O-Ring, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 5331, O-ring. Status: active.

What part numbers are listed for NSN 5331-01-421-6116?

NSN 5331-01-421-6116 has 1 manufacturer part number on file: 702027 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).

What NSN replaces 5331-01-421-6116?

1 possible match (shared part number, not a government interchangeability claim): 3940-01-648-2684. Verify interchangeability with system specifications before substitution.

Is NSN 5331-01-421-6116 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.
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