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FS-751-12FO-E1 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

FS-751-12FO-E1: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC GASKET, overall_length: 3.730 INCHES NOMINAL IN, style_designator: FEMALE COUPLING HALF, operating_pressure: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 1.063 INCHES SECOND FLUID END CONNECTION IN, nominal_outside_diameter: 1.990 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-661-4196, 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
FS-751-12FO-E1
NSN: 4730-01-661-4196
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 7DU54 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV QUICK COUPLING DIVISION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC GASKET
overall_length3.730 INCHES NOMINAL IN
style_designatorFEMALE COUPLING HALF
operating_pressure2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.063 INCHES SECOND FLUID END CONNECTION IN
nominal_outside_diameter1.990 INCHES IN
thread_quantity_per_inch12 SECOND FLUID END CONNECTION
thread_series_designatorUNF SECOND FLUID END CONNECTION
part_name_assigned_by_controlling_agencyFS SERIES COUPLERS-FEMALE THREAD
NSN4730-01-661-4196
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FS-751-12FO-E1 · 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
•
STYLE DESIGNATOR: FEMALE COUPLING HALF
•
OPERATING PRESSURE: 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL THREAD SIZE: 1.063 INCHES SECOND FLUID END CONNECTION IN
•
NOMINAL OUTSIDE DIAMETER: 1.990 INCHES IN
•
THREAD QUANTITY PER INCH: 12 SECOND FLUID END CONNECTION
•
MATERIAL: RUBBER SYNTHETIC GASKET
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFEMALE COUPLING HALF
OVERALL LENGTH3.730 INCHES NOMINAL IN
OPERATING PRESSURE2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE1.063 INCHES SECOND FLUID END CONNECTION IN
NOMINAL OUTSIDE DIAMETER1.990 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYFS SERIES COUPLERS-FEMALE THREAD
THREAD QUANTITY PER INCH12 SECOND FLUID END CONNECTION
MATERIALRUBBER SYNTHETIC GASKET
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNF SECOND FLUID END CONNECTION
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FS-751-12FO-E1?
FS-751-12FO-E1 is a COUPLING HALF,QUICK DISCONNECT.
What is the NSN for FS-751-12FO-E1?
FS-751-12FO-E1 is cataloged in the U.S. Government catalog under NSN 4730-01-661-4196. 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.