PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

821750Cap,protective,dust and Moisture

Firetrace Aerospace Llc · NSN 5340-01-577-3331 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-577-3331 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-577-3331. Primary manufacturer part number: 821750.
Features
  • Cap,protective,dust and Moisture — FSC 5340
  • 9 verified cross-references
  • Primary manufacturer: Firetrace Aerospace Llc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-577-3331, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Firetrace Aerospace Llc. This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Catalog Facts
Item NameCap,protective,dust and Moisture
FSC / FSG5340 — No Item Name Available (FSG 53)
ManufacturersOshkosh Corp (CAGE 45152); Nd Defense Llc (CAGE 338X5); Firetrace Aerospace Llc (CAGE 3R5K2); Oshkosh Defense Llc (CAGE 75Q65)
Technical Specifications
ParameterValue
NSN5340-01-577-3331
Primary Part Number821750
Item NameCap,protective,dust and Moisture
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerFiretrace Aerospace Llc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 10
5325-00-102-9621 INTERCHANGEABLE
Ring,retaining
5325-00-164-4199 INTERCHANGEABLE
Ring,retaining
5961-00-763-7891 INTERCHANGEABLE
Transistor
5945-00-782-692213214E3289 INTERCHANGEABLE
Relay Assembly
Cecom Lr Center
5325-00-903-7567 INTERCHANGEABLE
Ring,retaining
5325-01-146-08475100-18 INTERCHANGEABLE
Ring,retaining
Time Manufacturing Company Dba Time Manufacturing Company
5970-01-257-0419902-100 INTERCHANGEABLE
Insulator,bushing
Bivar Inc
5930-01-339-4846 INTERCHANGEABLE
Switch,push
5330-01-518-9799 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
5331-01-700-0783510-018 INTERCHANGEABLE
O-Ring
Kirby Morgan Dive Systems Inc
Cross-Reference Index
Part NumberManufacturer
3834824 Oshkosh Corp (USA)
3686534C91L Nd Defense Llc (USA)
3946290C1 Nd Defense Llc (USA)
3686534C91 Nd Defense Llc (USA)
510018 Firetrace Aerospace Llc (USA)
902100 Firetrace Aerospace Llc (USA)
3868122 Oshkosh Corp (USA)
3868122 Oshkosh Defense Llc (USA)
821750 PRIMARY Firetrace Aerospace Llc (USA)
Related Parts
5325-00-102-9621INTERCHANGEABLE
RING,RETAINING
5325-00-164-4199INTERCHANGEABLE
RING,RETAINING
5961-00-763-7891INTERCHANGEABLE
TRANSISTOR
5945-00-782-6922INTERCHANGEABLE
RELAY ASSEMBLY
13214E3289
5325-00-903-7567INTERCHANGEABLE
RING,RETAINING
5325-01-146-0847INTERCHANGEABLE
RING,RETAINING
5100-18
5970-01-257-0419INTERCHANGEABLE
INSULATOR,BUSHING
902-100
5930-01-339-4846INTERCHANGEABLE
SWITCH,PUSH
5330-01-518-9799INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
5331-01-700-0783INTERCHANGEABLE
O-RING
510-018

Frequently Asked Questions

What is NSN 5340-01-577-3331?

NSN 5340-01-577-3331 is a Cap,protective,dust and Moisture, manufactured by Firetrace Aerospace Llc, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-01-577-3331?

NSN 5340-01-577-3331 has 9 cross-referenced part numbers: 3834824 (Oshkosh Corp), 3686534C91L (Nd Defense Llc), 3946290C1 (Nd Defense Llc), 3686534C91 (Nd Defense Llc), 510018 (Firetrace Aerospace Llc) and 4 more.

What NSN replaces 5340-01-577-3331?

There are 10 known substitutes for 5340-01-577-3331: 5325-00-102-9621, 5325-00-164-4199, 5961-00-763-7891 and 7 more. Verify interchangeability with system specifications before substitution.

Is NSN 5340-01-577-3331 still in active supply?

NSN 5340-01-577-3331 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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