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HF91-A8F-04 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

HF91-A8F-04: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: STREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS, special_features: VALVE ASSY INCLUDES INTEGRAL BRONZE TAILPIECES, style_designator: STRAIGHT THRU, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-280-8936, 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
HF91-A8F-04
NSN: 4820-01-280-8936
FSC: 4820 — Valves, Nonpowered
CAGE: 77842 — EATON CORPORATION DBA EATON INOAC DIV EATON (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSTREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS
special_featuresVALVE ASSY INCLUDES INTEGRAL BRONZE TAILPIECES
style_designatorSTRAIGHT THRU
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
valve_operation_methodAUTOMATIC
media_for_which_designedHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
nominal_pipe_size_accommodated0.250 INCHES ALL ENDS IN
NSN4820-01-280-8936
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: HF91-A8F-04 · 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
•
CONNECTION STYLE: STREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
•
MATERIAL: STEEL CORROSION RESISTING BODY
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES ALL ENDS IN
CONNECTION STYLESTREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SPECIAL FEATURESVALVE ASSY INCLUDES INTEGRAL BRONZE TAILPIECES
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
MATERIALSTEEL CORROSION RESISTING BODY
VALVE OPERATION METHODAUTOMATIC
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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HF91-A8F-04?
HF91-A8F-04 is a VALVE,CHECK.
What is the NSN for HF91-A8F-04?
HF91-A8F-04 is cataloged in the U.S. Government catalog under NSN 4820-01-280-8936. This indicates validated use in U.S. government and defense supply chains.
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