NSN 5325-00-423-6451 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-423-6451. Manufacturer of record part number: 44999F.
Material Hardness Rating: 50.000 ROCKWELL C NOMINAL
Usage Design: INTERNAL
Strength Rating: ERR-060
Material Document and Classification: QQ-S-633, 1065 TO 1090 FED SPEC SINGLE MATERIAL RESPONSE OR SAE NO. 1065 TO 1090 ASSN STD SINGLE MATERIAL RESPONSE
Cross-Sectional Shape Style: RECTANGULAR
Outside Diameter: 1.756 INCHES NOMINAL IN
Major Thickness: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
Identification
NSN: 5325-00-423-6451
NIIN: 004236451
FSC: 5325 — Fastening Devices
FSG: 53 — Hardware and Abrasives
Primary part number: 44999F
Manufacturer: Dresser, Llc
General Description
The Ring,retaining, cataloged under National Stock Number 5325-00-423-6451, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Dresser, Llc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5325-00-423-6451
Primary Part Number
44999F
Item Name
Ring,retaining
FSC / FSG
5325 / 53 — Fastening Devices
Manufacturer
Dresser, Llc
Status
ACTIVE
Material Hardness Rating
50.000 ROCKWELL C NOMINAL
Usage Design
INTERNAL
Strength Rating
ERR-060
Material Document and Classification
QQ-S-633, 1065 TO 1090 FED SPEC SINGLE MATERIAL RESPONSE OR SAE NO. 1065 TO 1090 ASSN STD SINGLE MATERIAL RESPONSE
C/1Advisory reference — outside the item-of-supply concept
Oshkosh Defense Llc
145GKB87
5/9Secondary reference
Oshkosh Corp
No interchangeability data on file.
Other items in FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884
5325-00-000-1884 · Item name not on file
5325-00-000-9988
5325-00-000-9988 · Item name not on file
5325-00-001-1567
RING,RETAINING
5325-00-001-2043
FASTENER,PANEL
5325-00-001-3842
RING,RETAINING
5325-00-001-3858
5325-00-001-3858 · Item name not on file
5325-00-001-3871
RING,RETAINING
5325-00-001-4317
RING,RETAINING
Frequently Asked Questions
What is NSN 5325-00-423-6451?
NSN 5325-00-423-6451 is a Ring,retaining, manufactured by Dresser, Llc, classified under FSC 5325, Fastening Devices. Status: active.
What part numbers are listed for NSN 5325-00-423-6451?
NSN 5325-00-423-6451 has 2 manufacturer part numbers on file: 44999F (Dresser, Llc), 1A44999F (Fwd Seagrave Holdings Lp).
What are the specifications of 44999F?
Key specifications for 44999F: Material Hardness Rating: 50.000 ROCKWELL C NOMINAL; Usage Design: INTERNAL; Strength Rating: ERR-060; Material Document and Classification: QQ-S-633, 1065 TO 1090 FED SPEC SINGLE MATERIAL RESPONSE OR SAE NO. 1065 TO 1090 ASSN STD SINGLE MATERIAL RESPONSE. 10 specifications are documented in the U.S. Government catalog.
Is NSN 5325-00-423-6451 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.