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720-77 — RESISTOR,FIXED,COMPOSITION

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

720-77: RESISTOR,FIXED,COMPOSITION.

The RESISTOR,FIXED,COMPOSITION is a the manufacturer industrial component. Key specifications include special_features: COMMERCIAL FILM PROJECT; SIMILAR TO NSN 6750-00-691-3822, criticality_code_justification: FEAT, general_characteristics_item_description: BOX/CONTAINER INCLUDES (12) 8 OZ BOTTLES; LIQUID CONCENTRATE; MAKES 12 GALLONS OF WORKING SOLUTION WHEN MIXED OZ. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-842-6960, 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
720-77
NSN: 4820-00-842-6960
NIINs: 008426960, 009992400, 013671046
FSC: 4820 — Valves, Nonpowered
CAGE: 26702 — PSB INDUSTRIES INC DBA GENERAL AIR DIVISION (USA)
SPECIFICATIONS
special_featuresCOMMERCIAL FILM PROJECT; SIMILAR TO NSN 6750-00-691-3822
criticality_code_justificationFEAT
general_characteristics_item_descriptionBOX/CONTAINER INCLUDES (12) 8 OZ BOTTLES; LIQUID CONCENTRATE; MAKES 12 GALLONS OF WORKING SOLUTION WHEN MIXED OZ
NSN4820-00-842-6960
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 720-77 · 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
•
FLOW CONTROL DEVICE: PISTON
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CONNECTION STYLE: BEVELED (TUBE) ALL ENDS
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CONNECTION TYPE: BUTT WELD TUBE ALL ENDS
•
STYLE DESIGNATOR: ANGLE
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NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
BONNET TYPE: INSIDE SCREW
•
MAXIMUM OPERATING TEMP: 275.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPISTON
CONNECTION STYLEBEVELED (TUBE) ALL ENDS
CONNECTION TYPEBUTT WELD TUBE ALL ENDS
STYLE DESIGNATORANGLE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
BONNET TYPEINSIDE SCREW
MAXIMUM OPERATING TEMP275.0 FAHRENHEIT SINGLE RESPONSE DEGF
BONNET ATTACHMENT METHODTHREADED
MEDIA FOR WHICH DESIGNEDREFRIGERANT 22 SECOND RESPONSE
SUBSTITUTES & CROSS-REFERENCES 1
5161Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 720-77?
720-77 is a RESISTOR,FIXED,COMPOSITION.
What parts can replace 720-77?
There is 1 known substitute for 720-77: 5161. Substitute compatibility should be verified for your specific system.
What is the NSN for 720-77?
720-77 is cataloged in the U.S. Government catalog under NSN 4820-00-842-6960. 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.