PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS28773Retainer,packing

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5330-01-142-9940 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-142-9940 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-142-9940. Primary manufacturer part number: MS28773.
Features
  • Retainer,packing — FSC 5330
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
  • Joint Type: SCARF-PERIPHERAL RETAINER
  • Peripheral Diameter: 0.468 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
  • Material Document and Classification: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Cross-Sectional Shape Style: SQUARE/RECTANGULAR
  • Center Hole Diameter: 0.246 INCHES NOMINAL IN
  • Cross-Sectional Height: 0.055 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
Applications
  • Applications requiring Plastic Polytetrafluoroethylene Overall construction
General Description

The Retainer,packing, cataloged under National Stock Number 5330-01-142-9940, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-142-9940
Primary Part NumberMS28773
Item NameRetainer,packing
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Joint TypeSCARF-PERIPHERAL RETAINER
Peripheral Diameter0.468 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
Material Document and ClassificationMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape StyleSQUARE/RECTANGULAR
Center Hole Diameter0.246 INCHES NOMINAL IN
Cross-Sectional Height0.055 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-515-3432MS9058-05 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS28773 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS28773-02 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5330-00-515-3432INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
MS9058-05

Frequently Asked Questions

What is NSN 5330-01-142-9940?

NSN 5330-01-142-9940 is a Retainer,packing, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-142-9940?

NSN 5330-01-142-9940 has 2 cross-referenced part numbers: MS28773 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS28773-02 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5330-01-142-9940?

There is 1 known substitute for 5330-01-142-9940: 5330-00-515-3432. Verify interchangeability with system specifications before substitution.

What are the specifications of MS28773?

Key specifications for MS28773: Material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL; Joint Type: SCARF-PERIPHERAL RETAINER; Peripheral Diameter: 0.468 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN; Material Document and Classification: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 7 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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