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803-7657203ITEM69 — TAILPIECE,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

803-7657203ITEM69: TAILPIECE,UNION.

The TAILPIECE,UNION is a the manufacturer industrial component. Key specifications include material: STEEL, overall_length: 1.28 INCHES MINIMUM AND 1.32 INCHES MAXIMUM IN, flange_thickness: 1.7 INCHES MINIMUM AND 1.9 INCHES MAXIMUM IN, special_features: MATERIAL DOCUMENT - ASTM A403, CRES 316L, UNS S31603, end_item_identification: UNION ASSEMBLY, flange_outside_diameter: 1.975 INCHES MINIMUM AND 1.995 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-599-0095, 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
803-7657203ITEM69
NSN: 4730-01-599-0095
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL
overall_length1.28 INCHES MINIMUM AND 1.32 INCHES MAXIMUM IN
flange_thickness1.7 INCHES MINIMUM AND 1.9 INCHES MAXIMUM IN
special_featuresMATERIAL DOCUMENT - ASTM A403, CRES 316L, UNS S31603
end_item_identificationUNION ASSEMBLY
flange_outside_diameter1.975 INCHES MINIMUM AND 1.995 INCHES MAXIMUM IN
nominal_pipe_size_designation1.0 INCHES IN
part_name_assigned_by_controlling_agencyUNION TAILPIECE
NSN4730-01-599-0095
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 803-7657203ITEM69 · 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 PIPE SIZE DESIGNATION: 1.0 INCHES IN
•
FLANGE THICKNESS: 1.7 INCHES MINIMUM AND 1.9 INCHES MAXIMUM IN
•
MATERIAL: STEEL
•
FLANGE OUTSIDE DIAMETER: 1.975 INCHES MINIMUM AND 1.995 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE DESIGNATION1.0 INCHES IN
FLANGE THICKNESS1.7 INCHES MINIMUM AND 1.9 INCHES MAXIMUM IN
OVERALL LENGTH1.28 INCHES MINIMUM AND 1.32 INCHES MAXIMUM IN
SPECIAL FEATURESMATERIAL DOCUMENT - ASTM A403, CRES 316L, UNS S31603
PART NAME ASSIGNED BY CONTROLLING AGENCYUNION TAILPIECE
END ITEM IDENTIFICATIONUNION ASSEMBLY
MATERIALSTEEL
FLANGE OUTSIDE DIAMETER1.975 INCHES MINIMUM AND 1.995 INCHES MAXIMUM IN
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 803-7657203ITEM69?
803-7657203ITEM69 is a TAILPIECE,UNION.
What is the NSN for 803-7657203ITEM69?
803-7657203ITEM69 is cataloged in the U.S. Government catalog under NSN 4730-01-599-0095. 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.