Body Recess Diameter: 0.436 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Cross-Sectional Shape Style: FLANGE
Flanged Body Outside Diameter: 0.362 INCHES NOMINAL IN
Peripheral Diameter: 0.530 INCHES NOMINAL IN
Surface Treatment: PASSIVATE OVERALL
Center Hole Diameter: 0.314 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
Identification
NSN: 5330-00-409-9556
NIIN: 004099556
FSC: 5330 — Packing and Gasket Materials
FSG: 53 — Hardware and Abrasives
General Description
The Retainer,packing, cataloged under National Stock Number 5330-00-409-9556, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5330-00-409-9556
Item Name
Retainer,packing
FSC / FSG
5330 / 53 — Packing and Gasket Materials
Status
ACTIVE
Cross-Sectional Height
0.350 INCHES NOMINAL IN
Body Recess Diameter
0.436 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Cross-Sectional Shape Style
FLANGE
Flanged Body Outside Diameter
0.362 INCHES NOMINAL IN
Peripheral Diameter
0.530 INCHES NOMINAL IN
Surface Treatment
PASSIVATE OVERALL
Center Hole Diameter
0.314 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
Material
STEEL COMP 304 OVERALL
Body Recess Depth
0.097 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6145-00-538-8445UL62SVO3BCK3/18EPCPEPOSSIBLE MATCH
CABLE,POWER,ELECTRICAL
Possible match (shared part number)Underwriters Laboratories Inc
1620-00-591-1572POSSIBLE MATCH
RETAINER,PILOT VALVE PLUNGER
Possible match (shared part number)
5950-01-068-0998POSSIBLE MATCH
TRANSFORMER,POWER
Possible match (shared part number)
2090-01-328-1431POSSIBLE MATCH
AXIAL COMPENSATOR
Possible match (shared part number)
5975-01-395-41058453POSSIBLE MATCH
CONDUIT,NONMETALLIC,FLEXIBLE
Possible match (shared part number)Heyco Inc Dba Heyco Products
6640-01-508-9431C6510-12POSSIBLE MATCH
TIMER,DIGITAL
Possible match (shared part number)Cardinal Health 200, Llc
4140-01-532-05048453POSSIBLE MATCH
GUARD,FAN IMPELLER
Possible match (shared part number)Keystone Electronics Corp
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
8453RANDDI
5/9Secondary reference
U.S. Government activity
8453
3/2Design control — primary reference
U.S. Government activity
Related Parts
6145-00-538-8445POSSIBLE MATCH
CABLE,POWER,ELECTRICAL
UL62SVO3BCK3/18EPCPE
1620-00-591-1572POSSIBLE MATCH
RETAINER,PILOT VALVE PLUNGER
5950-01-068-0998POSSIBLE MATCH
TRANSFORMER,POWER
2090-01-328-1431POSSIBLE MATCH
AXIAL COMPENSATOR
5975-01-395-4105POSSIBLE MATCH
CONDUIT,NONMETALLIC,FLEXIBLE
8453
6640-01-508-9431POSSIBLE MATCH
TIMER,DIGITAL
C6510-12
4140-01-532-0504POSSIBLE MATCH
GUARD,FAN IMPELLER
8453
Frequently Asked Questions
What is NSN 5330-00-409-9556?
NSN 5330-00-409-9556 is a Retainer,packing, classified under FSC 5330, Packing and Gasket Materials. Status: active.
What NSN replaces 5330-00-409-9556?
7 possible matches (shared part number, not a government interchangeability claim): 6145-00-538-8445, 1620-00-591-1572, 5950-01-068-0998. Verify interchangeability with system specifications before substitution.
What are the specifications of 5330-00-409-9556?
Key specifications for 5330-00-409-9556: Cross-Sectional Height: 0.350 INCHES NOMINAL IN; Body Recess Diameter: 0.436 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN; Cross-Sectional Shape Style: FLANGE; Flanged Body Outside Diameter: 0.362 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.
Is NSN 5330-00-409-9556 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.