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3R20-192 — COUPLING,BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3R20-192: COUPLING,BOSS.

The COUPLING,BOSS is a the manufacturer industrial component. Key specifications include material: SILICON BODY, special_features: 300 PSI OPERATING, HEIGHT 1.31", BODY AND PORT SIZE 3/8", nominal_thread_size: 0.38 INCHES ALL ENDS IN, nominal_overall_length: 2.35 INCHES IN, thread_series_designator: NPTF ALL ENDS, part_name_assigned_by_controlling_agency: COUPLING, BOSS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-665-6616, 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
3R20-192
NSN: 4730-01-665-6616
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 73992 — TUTHILL CORP HANSEN COUPLING DIV (USA)
SPECIFICATIONS
materialSILICON BODY
special_features300 PSI OPERATING, HEIGHT 1.31", BODY AND PORT SIZE 3/8"
nominal_thread_size0.38 INCHES ALL ENDS IN
nominal_overall_length2.35 INCHES IN
thread_series_designatorNPTF ALL ENDS
part_name_assigned_by_controlling_agencyCOUPLING, BOSS
NSN4730-01-665-6616
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3R20-192 · 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 OVERALL LENGTH: 2.35 INCHES IN
•
NOMINAL THREAD SIZE: 0.38 INCHES ALL ENDS IN
•
MATERIAL: SILICON BODY
•
THREAD SERIES DESIGNATOR: NPTF ALL ENDS
TECHNICAL CHARACTERISTICS
NOMINAL OVERALL LENGTH2.35 INCHES IN
NOMINAL THREAD SIZE0.38 INCHES ALL ENDS IN
SPECIAL FEATURES300 PSI OPERATING, HEIGHT 1.31", BODY AND PORT SIZE 3/8"
PART NAME ASSIGNED BY CONTROLLING AGENCYCOUPLING, BOSS
MATERIALSILICON BODY
THREAD SERIES DESIGNATORNPTF 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 3R20-192?
3R20-192 is a COUPLING,BOSS.
What is the NSN for 3R20-192?
3R20-192 is cataloged in the U.S. Government catalog under NSN 4730-01-665-6616. 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.