NSN 5340-01-723-4988 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-723-4988. Manufacturer of record part number: 550099.
Tube Outside Diameter for Which Designed: 0.625 INCHES NOMINAL IN
Features Provided: ROHS DIRECTIVE COMPLIANCE
Material: PLASTIC VINYL
2 manufacturer part numbers on file
Manufacturer of record: Sinclair & Rush, Inc. Dba Sinclair & Rush Inc
Identification
NSN: 5340-01-723-4988
NIIN: 017234988
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: 550099
Manufacturer: Sinclair & Rush, Inc. Dba Sinclair & Rush Inc
General Description
The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-723-4988, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Sinclair & Rush, Inc. Dba Sinclair & Rush Inc. Government technical data includes 3 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. Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5340-01-723-4988
Primary Part Number
550099
Item Name
Cap,protective,dust and Moisture
FSC / FSG
5340 / 53 — Hardware, Commercial
Manufacturer
Sinclair & Rush, Inc. Dba Sinclair & Rush Inc
Status
ACTIVE
Tube Outside Diameter for Which Designed
0.625 INCHES NOMINAL IN
Features Provided
ROHS DIRECTIVE COMPLIANCE
Material
PLASTIC VINYL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Sinclair & Rush, Inc. Dba Sinclair & Rush Inc (USA)
No interchangeability data on file.
Other items in FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068
COVER,ACCESS
5340-00-000-0132
SEAT,HELICAL COMPRESSION SPRING
5340-00-000-8150
5340-00-000-8150 · Item name not on file
5340-00-001-1251
5340-00-001-1251 · Item name not on file
5340-00-001-1264
STRAP,WEBBING
5340-00-001-1265
STRAP,WEBBING
5340-00-001-1266
STRAP,WEBBING
5340-00-001-1275
HANDLE,DOOR
Frequently Asked Questions
What is NSN 5340-01-723-4988?
NSN 5340-01-723-4988 is a Cap,protective,dust and Moisture, manufactured by Sinclair & Rush, Inc. Dba Sinclair & Rush Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
What part numbers are listed for NSN 5340-01-723-4988?
NSN 5340-01-723-4988 has 2 manufacturer part numbers on file: 40005K26 (Mcmaster-Carr Supply Co), 550099 (Sinclair & Rush, Inc. Dba Sinclair & Rush Inc).
What are the specifications of 550099?
Key specifications for 550099: Overall Height: 2.00 INCHES NOMINAL IN; Tube Outside Diameter for Which Designed: 0.625 INCHES NOMINAL IN; Features Provided: ROHS DIRECTIVE COMPLIANCE; Special Features: COLOR IS BLACK AND SHAPE IS ROUND. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5340-01-723-4988 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.