PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DEI-1258Retainer,helical Compression Spr

Down East, Inc. · NSN 5340-01-067-5089 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-067-5089 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-067-5089. Primary manufacturer part number: DEI-1258.
Features
  • Retainer,helical Compression Spr — FSC 5340
  • Casehardening Indicator: NOT CASEHARDENED
  • Lip Thickness: 0.310 INCHES NOMINAL IN
  • End Hole Diameter: 0.516 INCHES NOMINAL IN
  • Material Document and Classification: MIL-P-19468, GROUP B MIL SPEC SINGLE MATERIAL RESPONSE
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE
  • Style Designator: IRREGULAR
  • Flange Thickness: 0.120 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic Polytetrafluoroethylene construction
General Description

The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-067-5089, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Down East, Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-067-5089
Primary Part NumberDEI-1258
Item NameRetainer,helical Compression Spr
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerDown East, Inc.
StatusACTIVE
Casehardening IndicatorNOT CASEHARDENED
Lip Thickness0.310 INCHES NOMINAL IN
End Hole Diameter0.516 INCHES NOMINAL IN
Material Document and ClassificationMIL-P-19468, GROUP B MIL SPEC SINGLE MATERIAL RESPONSE
MaterialPLASTIC POLYTETRAFLUOROETHYLENE
Style DesignatorIRREGULAR
Flange Thickness0.120 INCHES NOMINAL IN
Body Outside Diameter1.777 INCHES MINIMUM AND 1.778 INCHES MAXIMUM IN
Body Inside Diameter1.503 INCHES MINIMUM AND 1.507 INCHES MAXIMUM IN
Flange Diameter2.870 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
Handle,bow
5960-00-004-195910632 INTERCHANGEABLE
Electron Tube
Olympus America Inc
5962-00-186-85152868541-1 INTERCHANGEABLE
Microcircuit,linear
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5120-00-203-48001258 INTERCHANGEABLE
Wrench,open End
Martin Sprocket and Gear Inc
5977-00-239-4090 INTERCHANGEABLE
Brush,electrical Contact
5960-00-262-0189 INTERCHANGEABLE
Electron Tube
2940-00-497-633351258 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
2805-00-517-9909 INTERCHANGEABLE
Valve,poppet,engine
5305-00-639-86091258 INTERCHANGEABLE
Screw,machine
Telemechanics Inc
5325-00-835-601211860 INTERCHANGEABLE
Ring,retaining
Paragon Power Inc Sub of Great Lakes Power Products Inc
Cross-Reference Index
Part NumberManufacturer
DEI-1258 PRIMARY Down East, Inc. (USA)
77M69-20 ITEM 24 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
1258 Down East, Inc. (USA)
Related Parts
5340-00-680-8889SUCCESSOR
HANDLE,BOW
5960-00-004-1959INTERCHANGEABLE
ELECTRON TUBE
10632
5962-00-186-8515INTERCHANGEABLE
MICROCIRCUIT,LINEAR
2868541-1
5120-00-203-4800INTERCHANGEABLE
WRENCH,OPEN END
1258
5977-00-239-4090INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5960-00-262-0189INTERCHANGEABLE
ELECTRON TUBE
2940-00-497-6333INTERCHANGEABLE
FILTER ELEMENT,FLUID
51258
2805-00-517-9909INTERCHANGEABLE
VALVE,POPPET,ENGINE
5305-00-639-8609INTERCHANGEABLE
SCREW,MACHINE
1258
5325-00-835-6012INTERCHANGEABLE
RING,RETAINING
11860
5965-01-072-8567INTERCHANGEABLE
HEADSET,ELECTRICAL
1468-7058
6625-01-110-5813INTERCHANGEABLE
HOLDER
125-8

Frequently Asked Questions

What is NSN 5340-01-067-5089?

NSN 5340-01-067-5089 is a Retainer,helical Compression Spr, manufactured by Down East, Inc., classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-067-5089?

NSN 5340-01-067-5089 has 3 cross-referenced part numbers: DEI-1258 (Down East, Inc.), 77M69-20 ITEM 24 (Electric Boat Corporation Div General Dynamics Electric Boat), 1258 (Down East, Inc.).

What NSN replaces 5340-01-067-5089?

There are 12 known substitutes for 5340-01-067-5089: 5340-00-680-8889, 5960-00-004-1959, 5962-00-186-8515 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of DEI-1258?

Key specifications for DEI-1258: Casehardening Indicator: NOT CASEHARDENED; Lip Thickness: 0.310 INCHES NOMINAL IN; End Hole Diameter: 0.516 INCHES NOMINAL IN; Material Document and Classification: MIL-P-19468, GROUP B MIL SPEC SINGLE MATERIAL RESPONSE. 11 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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