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12387-1SP — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

12387-1SP: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include nominal_length: 3.59 INCHES ALL ENDS IN, special_features: PRESSURE SETTING: 3175-3225, end_item_identification: 2355-01-648-7836, part_name_assigned_by_controlling_agency: RELIEF VALVE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-681-4187, 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
12387-1SP
NSN: 4820-01-681-4187
FSC: 4820 — Valves, Nonpowered
CAGE: 0VUL5 — NORTH AMERICAN CONTROLS INC DBA NORTH AMERICAN CONTROLS INC (USA)
SPECIFICATIONS
nominal_length3.59 INCHES ALL ENDS IN
special_featuresPRESSURE SETTING: 3175-3225
end_item_identification2355-01-648-7836
part_name_assigned_by_controlling_agencyRELIEF VALVE
NSN4820-01-681-4187
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 12387-1SP · 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 LENGTH: 3.59 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: SCREW-IN CARTRIDGE
TECHNICAL CHARACTERISTICS
NOMINAL LENGTH3.59 INCHES ALL ENDS IN
STYLE DESIGNATORSCREW-IN CARTRIDGE
SPECIAL FEATURESPRESSURE SETTING: 3175-3225
PART NAME ASSIGNED BY CONTROLLING AGENCYRELIEF VALVE
END ITEM IDENTIFICATION2355-01-648-7836
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 1
12387SPReference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 12387-1SP?
12387-1SP is a VALVE,SAFETY RELIEF.
What parts can replace 12387-1SP?
There is 1 known substitute for 12387-1SP: 12387SP. Substitute compatibility should be verified for your specific system.
What is the NSN for 12387-1SP?
12387-1SP is cataloged in the U.S. Government catalog under NSN 4820-01-681-4187. 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.