PartsTable
Technical Data Sheet
Download PDF

C497731-1 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

C497731-1: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include connection_type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION, connection_style: PLAIN FIRST FLUID END CONNECTION, special_features: AIR BREATHING SYSTEM; CONNECTS GAUGE TO AIR HOSE ASSEMBLY, style_designator: FEMALE COUPLING HALF, end_item_identification: EMERGENCY AIR BREATHING SYSTEM, media_for_which_designed: OXYGEN, GASEOUS SINGLE RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-558-5470, 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
C497731-1
NSN: 4730-01-558-5470
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 55799 — MINE SAFETY APPLIANCES COMPANY (USA)
SPECIFICATIONS
connection_typeTHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
connection_stylePLAIN FIRST FLUID END CONNECTION
special_featuresAIR BREATHING SYSTEM; CONNECTS GAUGE TO AIR HOSE ASSEMBLY
style_designatorFEMALE COUPLING HALF
end_item_identificationEMERGENCY AIR BREATHING SYSTEM
media_for_which_designedOXYGEN, GASEOUS SINGLE RESPONSE
thread_series_designatorNPT FIRST FLUID END CONNECTION
part_name_assigned_by_controlling_agencySOCKET,END,THD
NSN4730-01-558-5470
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: C497731-1 · 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 FIRST FLUID END CONNECTION
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
•
STYLE DESIGNATOR: FEMALE COUPLING HALF
•
MEDIA FOR WHICH DESIGNED: OXYGEN, GASEOUS SINGLE RESPONSE
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN FIRST FLUID END CONNECTION
CONNECTION STYLEPUSH (INTERNAL) SECOND QUICK DISCONNECT END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
CONNECTION TYPEINTERNAL QUICK DISCONNECT SECOND QUICK DISCONNECT END
STYLE DESIGNATORFEMALE COUPLING HALF
SPECIAL FEATURESAIR BREATHING SYSTEM; CONNECTS GAUGE TO AIR HOSE ASSEMBLY
MEDIA FOR WHICH DESIGNEDOXYGEN, GASEOUS SINGLE RESPONSE
PART NAME ASSIGNED BY CONTROLLING AGENCYSOCKET,END,THD
END ITEM IDENTIFICATIONEMERGENCY AIR BREATHING SYSTEM
THREAD SERIES DESIGNATORNPT FIRST 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 2
551-6405703 FIND 12Reference document
Same NSN cross-reference
Reference document — Secondary reference
DF331255 FIND 12Reference 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
Ready to buy C497731-1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is C497731-1?
C497731-1 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace C497731-1?
There are 2 known substitutes for C497731-1: 551-6405703 FIND 12, DF331255 FIND 12. Substitute compatibility should be verified for your specific system.
What is the NSN for C497731-1?
C497731-1 is cataloged in the U.S. Government catalog under NSN 4730-01-558-5470. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — C497731-1