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170121 — HOLDER,SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

170121: HOLDER,SPRING.

The HOLDER,SPRING is a the manufacturer industrial component. Key specifications include material: STEEL, fsc_application_data: TELETYPE AND FACSIMILE EQUIPMENT, attachment_to_item_supported_method: HOLDS ITEM BY CIRCULAR GROOVE ON SHAFT, supporting_object/surface_attachment_method: INTERNALLY THREADED BOTH ENDS OF SHAFT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-894-9737, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
170121
NSN: 5340-00-894-9737
NIINs: 008949737, 014194606
FSC: 5340 — Hardware, Commercial
CAGE: 57712 — TELEMECHANICS INC (USA)
SPECIFICATIONS
materialSTEEL
fsc_application_dataTELETYPE AND FACSIMILE EQUIPMENT
attachment_to_item_supported_methodHOLDS ITEM BY CIRCULAR GROOVE ON SHAFT
supporting_object/surface_attachment_methodINTERNALLY THREADED BOTH ENDS OF SHAFT
NSN5340-00-894-9737
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 170121 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FSC APPLICATION DATA: TELETYPE AND FACSIMILE EQUIPMENT
•
SUPPORTING OBJECT/SURFACE ATTACHMENT METHOD: INTERNALLY THREADED BOTH ENDS OF SHAFT
•
ATTACHMENT TO ITEM SUPPORTED METHOD: HOLDS ITEM BY CIRCULAR GROOVE ON SHAFT
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATATELETYPE AND FACSIMILE EQUIPMENT
SUPPORTING OBJECT/SURFACE ATTACHMENT METHODINTERNALLY THREADED BOTH ENDS OF SHAFT
ATTACHMENT TO ITEM SUPPORTED METHODHOLDS ITEM BY CIRCULAR GROOVE ON SHAFT
MATERIALSTEEL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 170121?
170121 is a HOLDER,SPRING.
What is the NSN for 170121?
170121 is cataloged in the U.S. Government catalog under NSN 5340-00-894-9737. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.