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HM027-107-21 — VALVE,VENT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

HM027-107-21: VALVE,VENT.

The VALVE,VENT is a the manufacturer industrial component. Key specifications include nominal_length: 4.0 INCHES ALL ENDS IN, special_features: VALVE ASSEMBLY, VENT; WIDTH: 4.0 INCHES IN, nominal_thickness: 0.5 INCHES ALL ENDS IN, end_item_identification: MELB, part_name_assigned_by_controlling_agency: VALVE, VENT. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-727-2187, 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
HM027-107-21
NSN: 4820-01-727-2187
FSC: 4820 — Valves, Nonpowered
CAGE: 1T765 — ROBERTSON FUEL SYSTEMS, L.L.C. (USA)
SPECIFICATIONS
nominal_length4.0 INCHES ALL ENDS IN
special_featuresVALVE ASSEMBLY, VENT; WIDTH: 4.0 INCHES IN
nominal_thickness0.5 INCHES ALL ENDS IN
end_item_identificationMELB
part_name_assigned_by_controlling_agencyVALVE, VENT
NSN4820-01-727-2187
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: HM027-107-21 · 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: 4.0 INCHES ALL ENDS IN
•
NOMINAL THICKNESS: 0.5 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
NOMINAL LENGTH4.0 INCHES ALL ENDS IN
SPECIAL FEATURESVALVE ASSEMBLY, VENT; WIDTH: 4.0 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYVALVE, VENT
END ITEM IDENTIFICATIONMELB
NOMINAL THICKNESS0.5 INCHES ALL ENDS 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HM027-107-21?
HM027-107-21 is a VALVE,VENT.
What is the NSN for HM027-107-21?
HM027-107-21 is cataloged in the U.S. Government catalog under NSN 4820-01-727-2187. 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.