NSN 5331-01-621-0077 · NIIN 016210077 · Part number D337-1056-1
Mission Systems Orchard Park Inc · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 04577
Government record, cited
NSN 5331-01-621-0077 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-621-0077. Manufacturer of record part number: D337-1056-1.
Also searched as5331-01-621-0077 ·
5331016210077 ·
NIIN 016210077 ·
01-621-0077 ·
FSC 5331 O-ring · CAGE 04577 · D337-1056-1
Manufacturer of record: Mission Systems Orchard Park Inc
Identification
NSN: 5331-01-621-0077
NIIN: 016210077
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: D337-1056-1
Manufacturer: Mission Systems Orchard Park Inc
General Description
The O-Ring, cataloged under National Stock Number 5331-01-621-0077, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Mission Systems Orchard Park Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971
O-RING
5331-00-001-1979
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5331-00-001-3904
O-RING
5331-00-001-3905
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5331-00-001-3906
O-RING
5331-00-001-3908
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5331-00-001-3923
O-RING
5331-00-001-3924
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Frequently Asked Questions
What is NSN 5331-01-621-0077?
NSN 5331-01-621-0077 is a O-Ring, manufactured by Mission Systems Orchard Park Inc, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-621-0077?
NSN 5331-01-621-0077 has 1 manufacturer part number on file: D337-1056-1 (Mission Systems Orchard Park Inc).
What are the specifications of D337-1056-1?
Key specifications for D337-1056-1: Part Name Assigned by Controlling Agency: O-RING; End Item Identification: U-2. 0 specifications are documented in the U.S. Government catalog.
Is NSN 5331-01-621-0077 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.