Washer, Spring Tension 5310-01-392-6478 NSN 5310-01-392-6478 · NIIN 013926478 · Part number SSR-0550-S17
Smalley Steel Ring Co. · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 51814
NSN 5310-01-392-6478 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-392-6478. Manufacturer of record part number: SSR-0550-S17 .
Also searched as
5310-01-392-6478 ·
5310013926478 ·
NIIN 013926478 ·
01-392-6478 ·
FSC 5310 Nuts and Washers · CAGE 51814 · SSR-0550-S17
Nearby stock numbers
← 5310-01-392-6477 Washer, Flat
·
5310-01-392-6479 Nut, Plain, Hexagon →
AF 4.990 INCHES MAXIMUM IN
NUT + WASHER
5310-01-392-6478 — Nuts and Washers
Features
Washer,spring Tension — FSC 5310 Outside Diameter: 5.500 INCHES MINIMUM IN Material Thickness: 0.0300 INCHES NOMINAL IN Material: STEEL COMP 631 OVERALL Hole Diameter: 4.990 INCHES MAXIMUM IN 1 manufacturer part number on file Manufacturer of record: Smalley Steel Ring Co.
Identification
NSN: 5310-01-392-6478
NIIN: 013926478
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: SSR-0550-S17
Manufacturer: Smalley Steel Ring Co.
General Description
The Washer,spring Tension, cataloged under National Stock Number 5310-01-392-6478, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Smalley Steel Ring Co.. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 5310-01-392-6478 Primary Part Number SSR-0550-S17 Item Name Washer,spring Tension FSC / FSG 5310 / 53 — Nuts and Washers Manufacturer Smalley Steel Ring Co. Status ACTIVE Outside Diameter 5.500 INCHES MINIMUM IN Material Thickness 0.0300 INCHES NOMINAL IN Material STEEL COMP 631 OVERALL Hole Diameter 4.990 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N) Criticality Code X
Cross-Reference Index
Part Number Manufacturer
SSR-0550-S17 PRIMARY Smalley Steel Ring Co. (USA)
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file
Frequently Asked Questions
What is NSN 5310-01-392-6478?
NSN 5310-01-392-6478 is a Washer,spring Tension, manufactured by Smalley Steel Ring Co., classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-392-6478?
NSN 5310-01-392-6478 has 1 manufacturer part number on file: SSR-0550-S17 (Smalley Steel Ring Co.).
What are the specifications of SSR-0550-S17?
Key specifications for SSR-0550-S17: Overall Height: 0.250 INCHES NOMINAL IN; Outside Diameter: 5.500 INCHES MINIMUM IN; Material Thickness: 0.0300 INCHES NOMINAL IN; Material: STEEL COMP 631 OVERALL. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-392-6478 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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