PartsTable
Technical Data Sheet
Download PDF

53E300125-25 — ADAPTER,STRAIGHT,PIPE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

53E300125-25: ADAPTER,STRAIGHT,PIPE TO BOSS.

The ADAPTER,STRAIGHT,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, thread_class: 3B ALL ENDS, connection_type: THREADED INTERNAL BOSS ALL ENDS, connection_style: GASKET SEAL (BOSS) ALL ENDS, style_designator: RIGID, SHORT CENTER WRENCHING FACILITY, surface_treatment: ANODIZE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-203-3137, 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
53E300125-25
NSN: 4730-00-203-3137
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
thread_class3B ALL ENDS
connection_typeTHREADED INTERNAL BOSS ALL ENDS
connection_styleGASKET SEAL (BOSS) ALL ENDS
style_designatorRIGID, SHORT CENTER WRENCHING FACILITY
surface_treatmentANODIZE OVERALL
nominal_thread_size1.062 INCHES ALL ENDS IN
nominal_overall_length1.828 INCHES IN
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUN ALL ENDS
specification/standard_data81343-AS4875 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 80205-NAS424 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
surface_treatment_document_and_classificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
NSN4730-00-203-3137
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 53E300125-25 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
•
CONNECTION STYLE: GASKET SEAL (BOSS) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.828 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL BOSS ALL ENDS
•
STYLE DESIGNATOR: RIGID, SHORT CENTER WRENCHING FACILITY
•
NOMINAL THREAD SIZE: 1.062 INCHES ALL ENDS IN
•
SPECIFICATION/STANDARD DATA: 81343-AS4875 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 80205-NAS424 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
CONNECTION STYLEGASKET SEAL (BOSS) ALL ENDS
NOMINAL OVERALL LENGTH1.828 INCHES IN
CONNECTION TYPETHREADED INTERNAL BOSS ALL ENDS
STYLE DESIGNATORRIGID, SHORT CENTER WRENCHING FACILITY
NOMINAL THREAD SIZE1.062 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA81343-AS4875 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 80205-NAS424 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENTANODIZE OVERALL
THREAD CLASS3B 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 2
MIL-F-5509Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS4875Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 53E300125-25?
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 53E300125-25?
53E300125-25 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace 53E300125-25?
There are 2 known substitutes for 53E300125-25: MIL-F-5509, AS4875. Substitute compatibility should be verified for your specific system.
What is the NSN for 53E300125-25?
53E300125-25 is cataloged in the U.S. Government catalog under NSN 4730-00-203-3137. 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 — 53E300125-25

✓ 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.