PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50129-5Packing with Retainer

Mission Systems Davenport Inc. · NSN 5330-00-576-5121 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-576-5121 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-576-5121. Primary manufacturer part number: 50129-5.
Features
  • Packing with Retainer — FSC 5330
  • Surface Treatment: CADMIUM RETAINER
  • Retainer Thickness: 0.050 INCHES NOMINAL IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
  • Material Document and Classification: MIL-S-6855,GR 60 MIL SPEC SINGLE MATERIAL RESPONSE PACKING
  • Material: STEEL RETAINER
  • Construction: ONE-PIECE
  • Outside Diameter: 0.750 INCHES NOMINAL IN
Applications
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Packing construction
General Description

The Packing with Retainer, cataloged under National Stock Number 5330-00-576-5121, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mission Systems Davenport Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). 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
NSN5330-00-576-5121
Primary Part Number50129-5
Item NamePacking with Retainer
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerMission Systems Davenport Inc.
StatusACTIVE
Surface TreatmentCADMIUM RETAINER
Retainer Thickness0.050 INCHES NOMINAL IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
Material Document and ClassificationMIL-S-6855,GR 60 MIL SPEC SINGLE MATERIAL RESPONSE PACKING
MaterialSTEEL RETAINER
ConstructionONE-PIECE
Outside Diameter0.750 INCHES NOMINAL IN
Packing Inside Diameter0.425 INCHES NOMINAL IN
Packing Ring Cross-Sectional Diameter0.070 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-060-9071 INTERCHANGEABLE
Connector,receptacle,electrical
5935-00-233-6727247ASC0372-001 INTERCHANGEABLE
Connector,receptacle,electrical
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
1370-00-492-6786 INTERCHANGEABLE
Parts Kit,flare Dispenser
5355-00-558-1369 INTERCHANGEABLE
Dial,control
5895-00-864-6724 INTERCHANGEABLE
Control,receiver
5961-01-124-7332 INTERCHANGEABLE
Semiconductor Device,diode
1680-01-152-6271 INTERCHANGEABLE
Angle,seat
4820-01-192-3729501295 INTERCHANGEABLE
Disk,valve
Hunt Valve Company, Inc.
5962-01-221-8014 INTERCHANGEABLE
Microcircuit,digital
5950-01-257-795322307 INTERCHANGEABLE
Reactor-Transformer
Ward Leonard Ct Llc
Cross-Reference Index
Part NumberManufacturer
50129-5 Mission Systems Davenport Inc. (USA)
2230-7 Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp (USA)
Related Parts
5935-00-060-9071INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5935-00-233-6727INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
247ASC0372-001
1370-00-492-6786INTERCHANGEABLE
PARTS KIT,FLARE DISPENSER
5355-00-558-1369INTERCHANGEABLE
DIAL,CONTROL
5895-00-864-6724INTERCHANGEABLE
CONTROL,RECEIVER
5961-01-124-7332INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1680-01-152-6271INTERCHANGEABLE
ANGLE,SEAT
4820-01-192-3729INTERCHANGEABLE
DISK,VALVE
501295
5962-01-221-8014INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5950-01-257-7953INTERCHANGEABLE
REACTOR-TRANSFORMER
22307
5365-01-299-8305INTERCHANGEABLE
SPACER,SLEEVE
22307
5930-01-540-5232INTERCHANGEABLE
SWITCH,LEVER
22307

Frequently Asked Questions

What is NSN 5330-00-576-5121?

NSN 5330-00-576-5121 is a Packing with Retainer, manufactured by Mission Systems Davenport Inc., classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-576-5121?

NSN 5330-00-576-5121 has 2 cross-referenced part numbers: 50129-5 (Mission Systems Davenport Inc.), 2230-7 (Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp).

What NSN replaces 5330-00-576-5121?

There are 12 known substitutes for 5330-00-576-5121: 5935-00-060-9071, 5935-00-233-6727, 1370-00-492-6786 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50129-5?

Key specifications for 50129-5: Surface Treatment: CADMIUM RETAINER; Retainer Thickness: 0.050 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING; Material Document and Classification: MIL-S-6855,GR 60 MIL SPEC SINGLE MATERIAL RESPONSE PACKING. 9 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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