NSN 5355-00-071-4808 · NIIN 000714808 · Part number 40521
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · FSC 5355 — Knobs and Pointers · FSG 53 — Hardware and Abrasives · CAGE 50027
Government record, cited
NSN 5355-00-071-4808 — this item is cataloged by the U.S. Government under National Stock Number 5355-00-071-4808. Manufacturer of record part number: 40521.
Also searched as5355-00-071-4808 ·
5355000714808 ·
NIIN 000714808 ·
00-071-4808 ·
FSC 5355 Knobs and Pointers · CAGE 50027 · 40521
Manufacturer of record: Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
Identification
NSN: 5355-00-071-4808
NIIN: 000714808
FSC: 5355 — Knobs and Pointers
FSG: 53 — Hardware and Abrasives
Primary part number: 40521
Manufacturer: Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
General Description
The Window,dial, cataloged under National Stock Number 5355-00-071-4808, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. 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. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5355-00-071-4808
Primary Part Number
40521
Item Name
Window,dial
FSC / FSG
5355 / 53 — Knobs and Pointers
Manufacturer
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
Status
ACTIVE
Style Designator
ROUND
Outside Diameter
1.992 INCHES NOMINAL IN
Material Thickness
0.130 INCHES NOMINAL IN
Material
GLASS
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
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5360-00-300-765340521POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
Possible match (shared part number)Bae Systems Land & Armaments L.p.
4730-00-771-53144TI2BRPOSSIBLE MATCH
INSERT,TUBE FITTING
Possible match (shared part number)Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
5905-01-011-846440-521-POSSIBLE MATCH
RESISTOR,FIXED,WIRE WOUND
Possible match (shared part number)Ge Aviation Systems Ltd
1680-01-068-11324052-1POSSIBLE MATCH
INTERIOR PALLET
Possible match (shared part number)Kwd Aircraft Support Equipment Llc
2910-01-191-472240521POSSIBLE MATCH
NOZZLE,POSITION IND
Possible match (shared part number)Clyde Bergemann Inc
5120-01-224-487240521POSSIBLE MATCH
SOCKET,SOCKET WRENCH
Possible match (shared part number)S K Hand Tool Corp
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
Related Parts
5360-00-300-7653POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
40521
4730-00-771-5314POSSIBLE MATCH
INSERT,TUBE FITTING
4TI2BR
5905-01-011-8464POSSIBLE MATCH
RESISTOR,FIXED,WIRE WOUND
40-521-
1680-01-068-1132POSSIBLE MATCH
INTERIOR PALLET
4052-1
2910-01-191-4722POSSIBLE MATCH
NOZZLE,POSITION IND
40521
5120-01-224-4872POSSIBLE MATCH
SOCKET,SOCKET WRENCH
40521
9320-01-379-7654POSSIBLE MATCH
TAPE,ADHESIVE,RUBBER
Frequently Asked Questions
What is NSN 5355-00-071-4808?
NSN 5355-00-071-4808 is a Window,dial, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5355, Knobs and Pointers. Status: active.
What part numbers are listed for NSN 5355-00-071-4808?
NSN 5355-00-071-4808 has 1 manufacturer part number on file: 40521 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).
What NSN replaces 5355-00-071-4808?
7 possible matches (shared part number, not a government interchangeability claim): 5360-00-300-7653, 4730-00-771-5314, 5905-01-011-8464. Verify interchangeability with system specifications before substitution.
What are the specifications of 40521?
Key specifications for 40521: Style Designator: ROUND; Outside Diameter: 1.992 INCHES NOMINAL IN; Material Thickness: 0.130 INCHES NOMINAL IN; Material: GLASS. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5355-00-071-4808 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.