PartsTable
Technical Data Sheet

3/4 GG — COUPLING,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3/4 GG: COUPLING,PIPE.

The COUPLING,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OR STEEL CORROSION RESISTING OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, special_features: NHA IS SPECIAL TOOLS KIT, P/N 5SK140;CENTER WRENCHING FACILITY HEX IS 1.375 INCHES ACROSS THE FLATS IN, style_designator: RIGID, CENTER WRENCHING FACILITY, nominal_thread_size: 0.750 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-529-1049, 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
3/4 GG
NSN: 4730-01-529-1049
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
materialSTEEL OR STEEL CORROSION RESISTING OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresNHA IS SPECIAL TOOLS KIT, P/N 5SK140;CENTER WRENCHING FACILITY HEX IS 1.375 INCHES ACROSS THE FLATS IN
style_designatorRIGID, CENTER WRENCHING FACILITY
nominal_thread_size0.750 INCHES ALL ENDS IN
nominal_overall_length1.530 INCHES IN
end_item_identificationHIMARS, RSV, MK37, 2320-01-504-5218
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_series_designatorNPTF ALL ENDS
part_name_assigned_by_controlling_agencyHYDRAULIC PIPE COUPLING GG
NSN4730-01-529-1049
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3/4 GG · 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
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.530 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: RIGID, CENTER WRENCHING FACILITY
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL OVERALL LENGTH1.530 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORRIGID, CENTER WRENCHING FACILITY
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
SPECIAL FEATURESNHA IS SPECIAL TOOLS KIT, P/N 5SK140;CENTER WRENCHING FACILITY HEX IS 1.375 INCHES ACROSS THE FLATS IN
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
PART NAME ASSIGNED BY CONTROLLING AGENCYHYDRAULIC PIPE COUPLING GG
END ITEM IDENTIFICATIONHIMARS, RSV, MK37, 2320-01-504-5218
MATERIALSTEEL OR STEEL CORROSION RESISTING OVERALL
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 1
6KK583Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3/4 GG?
3/4 GG is a COUPLING,PIPE.
What parts can replace 3/4 GG?
There is 1 known substitute for 3/4 GG: 6KK583. Substitute compatibility should be verified for your specific system.
What is the NSN for 3/4 GG?
3/4 GG is cataloged in the U.S. Government catalog under NSN 4730-01-529-1049. 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.