PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H0657O-Ring

Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division · NSN 5331-01-542-9194 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-542-9194 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-542-9194. Primary manufacturer part number: H0657.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-542-9194, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-542-9194
Primary Part NumberH0657
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerKratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
8475-00-019-3885 INTERCHANGEABLE
Vent Cap
3040-00-146-7513 INTERCHANGEABLE
Shaft,drive
2805-00-350-64965575 INTERCHANGEABLE
Collar
Brinkley Technology Group Llc Dba Hercules Manufacturing
5930-00-422-22051257-1 INTERCHANGEABLE
Switch,push
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
4820-00-486-1883557-5C INTERCHANGEABLE
Valve,check
Goodrich Corporation Dba Goodrich Corp
5940-00-578-4866 INTERCHANGEABLE
Terminal Board
4730-00-640-518019175CA INTERCHANGEABLE
Fitting,lubrication
Hyundai Ideal Electric Co.
5910-00-667-5824 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
5975-00-702-2149 INTERCHANGEABLE
Bushing,electrical Conduit
3030-00-890-472713575 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
Cross-Reference Index
Part NumberManufacturer
5-575 Darcoid Rubber Co Inc (USA)
H0657 PRIMARY Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division (USA)
Related Parts
8475-00-019-3885INTERCHANGEABLE
VENT CAP
3040-00-146-7513INTERCHANGEABLE
SHAFT,DRIVE
2805-00-350-6496INTERCHANGEABLE
COLLAR
5575
5930-00-422-2205INTERCHANGEABLE
SWITCH,PUSH
1257-1
4820-00-486-1883INTERCHANGEABLE
VALVE,CHECK
557-5C
5940-00-578-4866INTERCHANGEABLE
TERMINAL BOARD
4730-00-640-5180INTERCHANGEABLE
FITTING,LUBRICATION
19175CA
5910-00-667-5824INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
5975-00-702-2149INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
3030-00-890-4727INTERCHANGEABLE
BELT,V
13575
6505-01-559-0815INTERCHANGEABLE
SMALLPOX VACCINE,LIVE
5985-01-575-5636INTERCHANGEABLE
BASE,ANTENNA SUPPORT

Frequently Asked Questions

What is NSN 5331-01-542-9194?

NSN 5331-01-542-9194 is a O-Ring, manufactured by Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-542-9194?

NSN 5331-01-542-9194 has 2 cross-referenced part numbers: 5-575 (Darcoid Rubber Co Inc), H0657 (Kratos Unmanned Aerial Systems, Inc Div Unmanned Systems Division).

What NSN replaces 5331-01-542-9194?

There are 12 known substitutes for 5331-01-542-9194: 8475-00-019-3885, 3040-00-146-7513, 2805-00-350-6496 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H0657?

Key specifications for H0657: End Item Identification: AIR FORCE SUB-SCALE AERIAL TARGET (AFSAT); Part Name Assigned by Controlling Agency: O-RING. 2 total characteristics are documented in the Federal Logistics Information System.

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