PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PC3.5Cup

Grimes Aerospace Company · NSN 5821-00-757-1976 · FSC 5821 · No Item Name Available
Verified by PartsTable
NSN 5821-00-757-1976 — this item is cataloged by the U.S. Government under National Stock Number 5821-00-757-1976. Primary manufacturer part number: PC3.5.
Features
  • Cup — FSC 5821
  • 2 verified cross-references
  • Primary manufacturer: Grimes Aerospace Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cup, cataloged under National Stock Number 5821-00-757-1976, is classified within Federal Supply Class 5821 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Grimes Aerospace Company. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCup
FSC / FSG5821 — No Item Name Available (FSG 58)
ManufacturersGrimes Aerospace Company (CAGE 72914)
Technical Specifications
ParameterValue
NSN5821-00-757-1976
Primary Part NumberPC3.5
Item NameCup
FSC / FSG5821 / 58 — No Item Name Available
ManufacturerGrimes Aerospace Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5325-00-291-9360GC590A7 INTERCHANGEABLE
Retainer,turnlock Fastener Eject
Northrop Grumman Systems Corporation
6210-00-299-6656 INTERCHANGEABLE
Light,panel
5961-00-415-1958360685-1 INTERCHANGEABLE
Semiconductor Device,diode
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
5325-00-904-0873 INTERCHANGEABLE
Retainer,turnlock Fastener Eject
5325-00-989-60333503-C3Y INTERCHANGEABLE
Retainer,turnlock Fastener Eject
Southco Inc
5360-01-233-8595 INTERCHANGEABLE
Spring
Cross-Reference Index
Part NumberManufacturer
PC3-1-2 Grimes Aerospace Company (USA)
PC3.5 PRIMARY Grimes Aerospace Company (USA)
Related Parts
5325-00-291-9360INTERCHANGEABLE
RETAINER,TURNLOCK FASTENER EJECT
GC590A7
6210-00-299-6656INTERCHANGEABLE
LIGHT,PANEL
5961-00-415-1958INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
360685-1
5325-00-904-0873INTERCHANGEABLE
RETAINER,TURNLOCK FASTENER EJECT
5325-00-989-6033INTERCHANGEABLE
RETAINER,TURNLOCK FASTENER EJECT
3503-C3Y
5360-01-233-8595INTERCHANGEABLE
SPRING

Frequently Asked Questions

What is NSN 5821-00-757-1976?

NSN 5821-00-757-1976 is a Cup, manufactured by Grimes Aerospace Company, classified under FSC 5821 (No Item Name Available). Status: active.

What are the part numbers for NSN 5821-00-757-1976?

NSN 5821-00-757-1976 has 2 cross-referenced part numbers: PC3-1-2 (Grimes Aerospace Company), PC3.5 (Grimes Aerospace Company).

What NSN replaces 5821-00-757-1976?

There are 6 known substitutes for 5821-00-757-1976: 5325-00-291-9360, 6210-00-299-6656, 5961-00-415-1958 and 3 more. Verify interchangeability with system specifications before substitution.

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