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Technical Data Sheet
PartsTable / MRO / 277-77
277-77 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The NOZZLE,DISTRIBUTION,WATER is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, body_diameter: 1.390 INCHES NOMINAL IN, terminal_type: WIRE LEAD, overall_height: 1.180 INCHES NOMINAL IN, mounting_method: BRACKET(S) AND UNTHREADED HOLE(S), features_provided: HERMETICALLY SEALED CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-020-4262, 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
MRO→ MRO_GENERAL→ 277-77
NSN: 4730-00-020-4262
FSC: 4730
CAGE: 12793 — AQUA-CHEM INC CLEAVER-BROOKS DIV (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
body_diameter1.390 INCHES NOMINAL IN
terminal_typeWIRE LEAD
overall_height1.180 INCHES NOMINAL IN
mounting_methodBRACKET(S) AND UNTHREADED HOLE(S)
features_providedHERMETICALLY SEALED CASE
center_hole_diameter4.719 INCHES MINIMUM AND 4.749 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
contact_action_stimulusINCREASE
end_item_identification4210-01-205-2246 FIRE EXTINGUISHER
mounting_facility_patternTWO POSITION IN-LINE
temp_sensing_element_typeINTERNAL SENSOR
NSN4730-00-020-4262
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 277-77 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
REVERSE FLOW PORT AREA AUTOMATIC CHANGE FEATURE: NOT INCLUDED
•
MATERIAL: COPPER ALLOY
•
CONNECTING END NOMINAL PIPE THREAD DIAMETER: 0.125 INCHES IN
•
CONNECTING END THREAD LOCATION: INTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
REVERSE FLOW PORT AREA AUTOMATIC CHANGE FEATURENOT INCLUDED
MATERIALCOPPER ALLOY
CONNECTING END NOMINAL PIPE THREAD DIAMETER0.125 INCHES IN
CONNECTING END THREAD LOCATIONINTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
2777-7Interchangeable
interchangeable cross-reference
interchangeable
D2777-7Interchangeable
interchangeable cross-reference
interchangeable
MILS11716Interchangeable
interchangeable cross-reference
interchangeable
9-188-100202Interchangeable
interchangeable cross-reference
interchangeable
05162Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 277-77?
277-77 is a NOZZLE,DISTRIBUTION,WATER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 277-77?
There are 5 known substitutes for 277-77: 2777-7, D2777-7, MILS11716 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 277-77?
277-77 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-020-4262. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026