STAM178A5 Spring Tension Washer

Name: Aerospace Hardware Store
Address: 3555 Agricultural Center Dr., St. Augustine, FL, 32092, US
Telephone: (+1) 321-802-5889
Price range: Request for Quote

5310-01-030-4921

Specifications, compliance details, and sourcing options for this NSN. Request a quote to confirm availability, pricing, and lead time.

Request for Quote

Send us a request for quote using the form below. Our team will promptly provide you with the latest pricing and availability details.

Featured Parts

11B3570006

4710-01-672-8697

Horizontal Locking Arm

11B3570007

4710-01-672-8690

Horizon Locking Arm

11B3570008

4710-01-672-8694

Vertical Locking Arm

11B3570018

4710-01-673-0429

Metallic Tube

11B3570021

4710-01-672-9672

Metallic Tube

11B3570023

4710-01-672-9659

Underneath Assembly Gusset

11B3570024

5340-01-672-9677

Mounting Plate

11B3570025

5340-01-672-9674

Mounting Bracket

Need Assistance?

Our catalog is extensive, but we understand that sometimes specific needs might not be immediately available. If you could not find the exact products you were searching for, we are here to help!

Certified Supplier

Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.

Genuine Manufacturers Parts
100% Product Inspection
7 Year Sales Record Retention
Fast On-Time Delivery
HAZMAT Certified
Global Shipping

Official Item Classification

Name: Spring Tension Washer
Part Number: STAM178A5
(NSN) National Stock Number: 5310-01-030-4921
(FSG) Federal Supply Group: 53 Hardware and Abrasives
(FSC) Federal Supply Classification: 5310 Nuts and Washers
(INC) Item Name Code: 15938
(FIIG) Federal Item Identification Guide: A022B0
Date: 08/23/1985 (41 years ago)

2.870 inches nominal hole diameter, 3.330 inches nominal outside diameter, 0.307 inches nominal overall height, one tab 0.200 in.w on each side of center hole special features, 0.025 inches nominal material thickness

Specs & Compatibility

Hole Diameter

2.870 inches nominal

Outside Diameter

3.330 inches nominal

Overall Height

0.307 inches nominal

Material Thickness

0.025 inches nominal

Special Features

one tab 0.200 in.w on each side of center hole

Material

copper alloy 172 overall

Material Document And Classification

qq-c-533,tat fed spec single material response overall

Surface Treatment

tin overall

Surface Treatment Document And Classification

mil-t-10727 mil spec single treatment response overall

Style Designator

spring tension

Regulatory Compliance

Precious Metals Indicator

Item does not contain precious metal.

Criticality Code

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0015938

Related Hardware Products

Part Number	Description
ST4M178A5	Spring Tension Washer
STAM178A5	Spring Tension Washer

Frequently Asked Questions

What is the FSCG of the NSN 5310-01-030-4921?

The FSCG of the NSN 5310-01-030-4921 is 5310

Does the NSN 5310-01-030-4921 have a Schedule B code assigned?

Yes, the Schedule B code is 7415210000

Does NSN 5310-01-030-4921 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5310-01-030-4921 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-030-4921 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5310-01-030-4921 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Fri, Aug 23, 1985