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H1991 — VALVE,REGULATING,TEMPERATURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

H1991: VALVE,REGULATING,TEMPERATURE.

The VALVE,REGULATING,TEMPERATURE is a the manufacturer industrial component. Key specifications include special_features: USED ON AMC 1974 HORNET SEDAN, first_end_connection_type: UNTHREADED EXTERNAL TUBE, first_end_style_designator: PLAIN, first_end_outside_diameter_tube_accommodated: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-168-3535, 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
H1991
NSN: 4820-01-168-3535
FSC: 4820 — Valves, Nonpowered
CAGE: 21758 — EVERCO INDUSTRIES INC (USA)
SPECIFICATIONS
special_featuresUSED ON AMC 1974 HORNET SEDAN
end_connection_quantity2
first_end_connection_typeUNTHREADED EXTERNAL TUBE
first_end_style_designatorPLAIN
first_end_outside_diameter_tube_accommodated0.625 INCHES NOMINAL IN
NSN4820-01-168-3535
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: H1991 · 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
•
FIRST END STYLE DESIGNATOR: PLAIN
•
END CONNECTION QUANTITY: 2
•
FIRST END CONNECTION TYPE: UNTHREADED EXTERNAL TUBE
•
FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FIRST END STYLE DESIGNATORPLAIN
END CONNECTION QUANTITY2
FIRST END CONNECTION TYPEUNTHREADED EXTERNAL TUBE
SPECIAL FEATURESUSED ON AMC 1974 HORNET SEDAN
FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES NOMINAL IN
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
3222290Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H1991?
H1991 is a VALVE,REGULATING,TEMPERATURE.
What parts can replace H1991?
There is 1 known substitute for H1991: 3222290. Substitute compatibility should be verified for your specific system.
What is the NSN for H1991?
H1991 is cataloged in the U.S. Government catalog under NSN 4820-01-168-3535. This indicates validated use in U.S. government and defense supply chains.
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