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Technical Data Sheet
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2503853-003 — NIPPLE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2503853-003: NIPPLE,PIPE.

The NIPPLE,PIPE is a the manufacturer industrial component. Key specifications include nominal_length: 1.750 INCHES ALL ENDS IN, special_features: SCHEDULE 80; 9 UNITS PER ASSEMBLY; TOE, end_item_identification: SEWAGE TREATMENT ASSEMBLY, media_for_which_designed: WASTE PRODUCT SINGLE RESPONSE, nominal_pipe_size_accommodated: 0.750 INCHES ALL ENDS IN, part_name_assigned_by_controlling_agency: NIPPLE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-481-1536, 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
2503853-003
NSN: 4730-01-481-1536
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 47WD8 — EVAC NORTH AMERICA INC (USA)
SPECIFICATIONS
nominal_length1.750 INCHES ALL ENDS IN
special_featuresSCHEDULE 80; 9 UNITS PER ASSEMBLY; TOE
end_item_identificationSEWAGE TREATMENT ASSEMBLY
media_for_which_designedWASTE PRODUCT SINGLE RESPONSE
nominal_pipe_size_accommodated0.750 INCHES ALL ENDS IN
part_name_assigned_by_controlling_agencyNIPPLE
NSN4730-01-481-1536
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2503853-003 · 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 ACCOMMODATED: 0.750 INCHES ALL ENDS IN
•
NOMINAL LENGTH: 1.750 INCHES ALL ENDS IN
•
MEDIA FOR WHICH DESIGNED: WASTE PRODUCT SINGLE RESPONSE
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES ALL ENDS IN
NOMINAL LENGTH1.750 INCHES ALL ENDS IN
SPECIAL FEATURESSCHEDULE 80; 9 UNITS PER ASSEMBLY; TOE
MEDIA FOR WHICH DESIGNEDWASTE PRODUCT SINGLE RESPONSE
PART NAME ASSIGNED BY CONTROLLING AGENCYNIPPLE
END ITEM IDENTIFICATIONSEWAGE TREATMENT ASSEMBLY
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2503853-003?
2503853-003 is a NIPPLE,PIPE.
What is the NSN for 2503853-003?
2503853-003 is cataloged in the U.S. Government catalog under NSN 4730-01-481-1536. 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.