NSN 5360-01-251-3770 — this item is cataloged by the U.S. Government under National Stock Number 5360-01-251-3770. Manufacturer of record part number: 40310 20771.
Also searched as5360-01-251-3770 ·
5360012513770 ·
NIIN 012513770 ·
01-251-3770 ·
FSC 5360 Coil, Flat, Leaf, and Wire Springs · CAGE 5S434 · 40310 20771
Nearby stock numbers← 5360-01-251-3355 Spring
·
5360-01-251-3813 Spring, Latch →
Features
Spring,flat — FSC 5360
1 manufacturer part number on file
Manufacturer of record: Duffens Optical Inc
Identification
NSN: 5360-01-251-3770
NIIN: 012513770
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
FSG: 53 — Hardware and Abrasives
Primary part number: 40310 20771
Manufacturer: Duffens Optical Inc
General Description
The Spring,flat, cataloged under National Stock Number 5360-01-251-3770, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is Duffens Optical Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Other items in FSC 5360 — Coil, Flat, Leaf, and Wire Springs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5360-00-001-1842
SPRING,HELICAL,COMPRESSION
5360-00-001-1945
5360-00-001-1945 · Item name not on file
5360-00-001-2010
SPRING,HELICAL,EXTENSION
5360-00-001-3865
5360-00-001-3865 · Item name not on file
5360-00-001-3950
5360-00-001-3950 · Item name not on file
5360-00-001-4650
SPRING,HELICAL,COMPRESSION
5360-00-001-4664
SPRING,CONSTANT TO
5360-00-001-4703
5360-00-001-4703 · Item name not on file
Frequently Asked Questions
What is NSN 5360-01-251-3770?
NSN 5360-01-251-3770 is a Spring,flat, manufactured by Duffens Optical Inc, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
What part numbers are listed for NSN 5360-01-251-3770?
NSN 5360-01-251-3770 has 1 manufacturer part number on file: 40310 20771 (Duffens Optical Inc).
What are the specifications of 40310 20771?
Key specifications for 40310 20771: Special Features: USE TO RETAIN MIRROR IN OPHTHALMIC ILLUMINATION SYSTEM; UNIT QTY 1. 0 specifications are documented in the U.S. Government catalog.
Is NSN 5360-01-251-3770 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.