PartsTable
Technical Data Sheet

SS-4C1-1/3 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

SS-4C1-1/3: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, operating_pressure: 0.03 BAR MAXIMUM SINGLE RESPONSE, end_item_identification: 016959131, nominal_pipe_size_accommodated: 0.250 INCHES ALL ENDS IN, part_name_assigned_by_controlling_agency: STAINLESS STEEL POPPET CHECK VALVE, FIXED PRESSURE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-727-8134, 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
SS-4C1-1/3
NSN: 4820-01-727-8134
FSC: 4820 — Valves, Nonpowered
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
operating_pressure0.03 BAR MAXIMUM SINGLE RESPONSE
end_item_identification016959131
nominal_pipe_size_accommodated0.250 INCHES ALL ENDS IN
part_name_assigned_by_controlling_agencySTAINLESS STEEL POPPET CHECK VALVE, FIXED PRESSURE
NSN4820-01-727-8134
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: SS-4C1-1/3 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: SCREW-IN CARTRIDGE
•
OPERATING PRESSURE: 0.03 BAR MAXIMUM SINGLE RESPONSE
•
MATERIAL: STEEL COMP 316 OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES ALL ENDS IN
STYLE DESIGNATORSCREW-IN CARTRIDGE
OPERATING PRESSURE0.03 BAR MAXIMUM SINGLE RESPONSE
PART NAME ASSIGNED BY CONTROLLING AGENCYSTAINLESS STEEL POPPET CHECK VALVE, FIXED PRESSURE
END ITEM IDENTIFICATION016959131
MATERIALSTEEL COMP 316 OVERALL
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 SS-4C1-1/3?
SS-4C1-1/3 is a VALVE,CHECK.
What is the NSN for SS-4C1-1/3?
SS-4C1-1/3 is cataloged in the U.S. Government catalog under NSN 4820-01-727-8134. 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.