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DL48121 ITEM 16 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

DL48121 ITEM 16: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: COPPER ALLOY, design_type: SOLID, style_designator: SEAT, end_item_identification: USED IN A RELIEF VALVE, part_name_assigned_by_controlling_agency: SPRING WASHER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-496-4135, 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
DL48121 ITEM 16
NSN: 5340-01-496-4135
FSC: 5340 — Hardware, Commercial
CAGE: 72352 — CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA FARRIS ENGINEERING DIV CURTISS-WRIGHT VALVES DIVISION- FARRIS (USA)
SPECIFICATIONS
materialCOPPER ALLOY
design_typeSOLID
style_designatorSEAT
end_item_identificationUSED IN A RELIEF VALVE
part_name_assigned_by_controlling_agencySPRING WASHER
NSN5340-01-496-4135
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DL48121 ITEM 16 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
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
PART NAME ASSIGNED BY CONTROLLING AGENCYSPRING WASHER
END ITEM IDENTIFICATIONUSED IN A RELIEF VALVE
MATERIALCOPPER ALLOY
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 1
D48-12-17Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DL48121 ITEM 16?
DL48121 ITEM 16 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace DL48121 ITEM 16?
There is 1 known substitute for DL48121 ITEM 16: D48-12-17. Substitute compatibility should be verified for your specific system.
What is the NSN for DL48121 ITEM 16?
DL48121 ITEM 16 is cataloged in the U.S. Government catalog under NSN 5340-01-496-4135. This indicates validated use in U.S. government and defense supply chains.
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