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2888884 — COUPLING,BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2888884: COUPLING,BOSS.

The COUPLING,BOSS is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thread_class: 3B ALL ENDS, connection_type: THREADED INTERNAL BOSS ALL ENDS, connection_style: GASKET SEAL (BOSS) ALL ENDS, special_features: BULKHEAD,FIRST END,12 THD PER IN.,1.312 IN. THD SIZE,UN THD SERIES,3A THD; FURNISHED W/PIN A, style_designator: RIGID, SHORT CENTER WRENCHING FACILITY.

This part is cataloged in the U.S. Government catalog under NSN 4730-01-073-5832, 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
2888884
NSN: 4730-01-073-5832
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thread_class3B ALL ENDS
connection_typeTHREADED INTERNAL BOSS ALL ENDS
connection_styleGASKET SEAL (BOSS) ALL ENDS
special_featuresBULKHEAD,FIRST END,12 THD PER IN.,1.312 IN. THD SIZE,UN THD SERIES,3A THD; FURNISHED W/PIN A
style_designatorRIGID, SHORT CENTER WRENCHING FACILITY
nominal_thread_size0.750 INCHES ALL ENDS IN
nominal_overall_length1.890 INCHES IN
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
material_document_and_classificationQQ-B-326,ALLOY 360,HALF HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-073-5832
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2888884 · 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: GASKET SEAL (BOSS) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.890 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL BOSS ALL ENDS
•
STYLE DESIGNATOR: RIGID, SHORT CENTER WRENCHING FACILITY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-326,ALLOY 360,HALF HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
THREAD CLASS: 3B ALL ENDS
TECHNICAL CHARACTERISTICS
CONNECTION STYLEGASKET SEAL (BOSS) ALL ENDS
NOMINAL OVERALL LENGTH1.890 INCHES IN
CONNECTION TYPETHREADED INTERNAL BOSS ALL ENDS
STYLE DESIGNATORRIGID, SHORT CENTER WRENCHING FACILITY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-326,ALLOY 360,HALF HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
SPECIAL FEATURESBULKHEAD,FIRST END,12 THD PER IN.,1.312 IN. THD SIZE,UN THD SERIES,3A THD; FURNISHED W/PIN A
THREAD CLASS3B ALL ENDS
MATERIALCOPPER ALLOY OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
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 2888884?
2888884 is a COUPLING,BOSS.
What is the NSN for 2888884?
2888884 is cataloged in the U.S. Government catalog under NSN 4730-01-073-5832. 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.