NSN 5310-01-030-4919 · NIIN 010304919 · Part number ST4M178A3
The Boeing Company Div Defense · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 76301
Government record, cited
NSN 5310-01-030-4919 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-030-4919. Manufacturer of record part number: ST4M178A3.
Also searched as5310-01-030-4919 ·
5310010304919 ·
NIIN 010304919 ·
01-030-4919 ·
FSC 5310 Nuts and Washers · CAGE 76301 · ST4M178A3
Nearby stock numbers← 5310-01-030-4918 Washer, Spring Tension
·
5310-01-030-4920 Washer, Spring Tension →
5310-01-030-4919 — Nuts and Washers
Features
Washer,spring Tension — FSC 5310
Surface Treatment Document and Classification: MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Style Designator: SPRING TENSION
Material Document and Classification: QQ-C-533,TEMPER AT FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter: 2.360 INCHES NOMINAL2.360 INCHES NOMINAL IN
Material Thickness: 0.020 INCHES NOMINAL0.020 INCHES NOMINAL IN
Surface Treatment: TIN OVERALL
Material: COPPER ALLOY 172 OVERALL
Identification
NSN: 5310-01-030-4919
NIIN: 010304919
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: ST4M178A3
Manufacturer: The Boeing Company Div Defense
General Description
The Washer,spring Tension, cataloged under National Stock Number 5310-01-030-4919, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-030-4919
Primary Part Number
ST4M178A3
Item Name
Washer,spring Tension
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
The Boeing Company Div Defense
Status
ACTIVE
Surface Treatment Document and Classification
MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Style Designator
SPRING TENSION
Material Document and Classification
QQ-C-533,TEMPER AT FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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Frequently Asked Questions
What is NSN 5310-01-030-4919?
NSN 5310-01-030-4919 is a Washer,spring Tension, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-030-4919?
NSN 5310-01-030-4919 has 2 manufacturer part numbers on file: ST4M178A3 (Tech Etch Inc), ST4M178A3 (The Boeing Company Div Defense).
What are the specifications of ST4M178A3?
Key specifications for ST4M178A3: Overall Height: 0.307 INCHES NOMINAL0.307 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: SPRING TENSION; Material Document and Classification: QQ-C-533,TEMPER AT FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 8 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-030-4919 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.