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CGA-660 — HEATER,THERMAL RELEASE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

CGA-660: HEATER,THERMAL RELEASE.

The HEATER,THERMAL RELEASE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.728 INCHES NOMINAL IN, thread_class: 2B, thread_series: NGO, shoulder_width: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-160-6306, 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
CGA-660
NSN: 4730-01-160-6306
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 16166 — WESTERN ENTERPRISES DIV OF SCOTT AND FETZER CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.728 INCHES NOMINAL IN
thread_class2B
thread_seriesNGO
shoulder_width0.125 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_across_flats1.250 INCHES NOMINAL IN
nominal_thread_size1.035 INCHES IN
shoulder_step_width0.197 INCHES NOMINAL IN
shoulder_seat_diameter1.230 INCHES NOMINAL IN
smallest_inside_diameter0.766 INCHES MINIMUM AND 0.776 INCHES MAXIMUM IN
NSN4730-01-160-6306
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CGA-660 · 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
•
WIDTH ACROSS FLATS: 1.250 INCHES NOMINAL IN
•
SHOULDER STEP WIDTH: 0.197 INCHES NOMINAL IN
•
SHOULDER WIDTH: 0.125 INCHES NOMINAL IN
•
THREAD SERIES: NGO
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.035 INCHES IN
•
NUT HEIGHT: 0.728 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.250 INCHES NOMINAL IN
SHOULDER STEP WIDTH0.197 INCHES NOMINAL IN
SHOULDER WIDTH0.125 INCHES NOMINAL IN
THREAD SERIESNGO
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.035 INCHES IN
NUT HEIGHT0.728 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH14
SUBSTITUTES & CROSS-REFERENCES 2
05-010-006Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
N77Reference document
Same NSN cross-reference
Reference document — Secondary 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 CGA-660?
CGA-660 is a HEATER,THERMAL RELEASE.
What parts can replace CGA-660?
There are 2 known substitutes for CGA-660: 05-010-006, N77. Substitute compatibility should be verified for your specific system.
What is the NSN for CGA-660?
CGA-660 is cataloged in the U.S. Government catalog under NSN 4730-01-160-6306. 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.