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Technical Data Sheet

3109-35-73 — Technical Data Sheet

✓ Verified by PartsTable
— · HOSE FITTING
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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: STEEL OVERALL, body_type: SOLID, head_type: SOLID, drive_end_style: RAISED SQUARE, connection_style: PLAIN, thread_direction: RIGHT-HAND EXTERNAL. This part is cataloged in the Federal Logistics Information System under NSN 4730-00-279-0985, 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
3109-35-73
NSN: 4730-00-279-0985
FSC: 4730
CAGE: 07524 — DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_typeSOLID
head_typeSOLID
drive_end_styleRAISED SQUARE
connection_stylePLAIN
thread_directionRIGHT-HAND EXTERNAL
surface_treatmentZINC OVERALL
operating_pressure125.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
nominal_thread_size0.250 INCHES EXTERNAL IN
end_item_identificationGRUMMAN A-10 AIRCRAFT
thread_series_designatorNPT EXTERNAL
nondefinitive_spec/std_data2 TYPE AND C STYLE
NSN4730-00-279-0985
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3109-35-73 · 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
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.250 INCHES IN
•
BODY TYPE: SOLID
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND C STYLE
•
OPERATING PRESSURE: 125.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
SPECIFICATION/STANDARD DATA: 81348-WW-P-471 GOVERNMENT SPECIFICATION
•
NOMINAL THREAD SIZE: 0.250 INCHES EXTERNAL IN
•
THREAD SERIES DESIGNATOR: NPT EXTERNAL
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.250 INCHES IN
BODY TYPESOLID
NONDEFINITIVE SPEC/STD DATA2 TYPE AND C STYLE
END ITEM IDENTIFICATIONGRUMMAN A-10 AIRCRAFT
OPERATING PRESSURE125.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
SPECIFICATION/STANDARD DATA81348-WW-P-471 GOVERNMENT SPECIFICATION
NOMINAL THREAD SIZE0.250 INCHES EXTERNAL IN
THREAD SERIES DESIGNATORNPT EXTERNAL
SURFACE TREATMENTZINC OVERALL
HEAD TYPESOLID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 39
22-769XInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1-4SHPSInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
13F4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
13218E0122-13InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5406-P-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5M6213InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3109-35-73?
3109-35-73 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 3109-35-73?
There are 39 known substitutes for 3109-35-73: 22-769X, 1-4SHPS, 13F4 and 36 more. Substitute compatibility should be verified for your specific system.
Is 3109-35-73 still available?
3109-35-73 is currently cancelled.
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