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NAS552-12D — CONNECTOR,MULTIPLE,FLUID PRESSUR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

NAS552-12D: CONNECTOR,MULTIPLE,FLUID PRESSUR.

CONNECTOR,MULTIPLE,FLUID PRESSUR. Key specifications include material: ALUMINUM ALLOY, thickness: 1.682 INCHES MINIMUM AND 1.692 INCHES MAXIMUM IN, thread_size: 1-1/16 IN. -12 LOCATION NOT OTHERWISE SPECIFIED IN, thread_class: 3A LOCATION NOT OTHERWISE SPECIFIED A, overall_width: 1.673 INCHES MINIMUM AND 1.703 INCHES MAXIMUM IN, overall_length: 2.807 INCHES MINIMUM AND 2.881 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 4730-00-555-3364, 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
NAS552-12D
NSN: 4730-00-555-3364
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
thickness1.682 INCHES MINIMUM AND 1.692 INCHES MAXIMUM IN
thread_size1-1/16 IN. -12 LOCATION NOT OTHERWISE SPECIFIED IN
thread_class3A LOCATION NOT OTHERWISE SPECIFIED A
overall_width1.673 INCHES MINIMUM AND 1.703 INCHES MAXIMUM IN
overall_length2.807 INCHES MINIMUM AND 2.881 INCHES MAXIMUM IN
furnished_itemsSEAT LOCATION NOT OTHERWISE SPECIFIED
connection_styleFLARED LOCATION NOT OTHERWISE SPECIFIED
style_designator1 FLUID CONNECTION
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
thread_provisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
seat_angle_in_deg37.0 LOCATION NOT OTHERWISE SPECIFIED
NSN4730-00-555-3364
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: NAS552-12D · 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
•
BOLT HOLE FLUID PASSAGE: PROVIDED
•
SEAT ANGLE IN DEG: 37.0 LOCATION NOT OTHERWISE SPECIFIED
•
THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED
•
FLUID CONVEYANCE TYPE AND SIZE FOR WHICH DESIGNED: 3/4 IN. OD TUBE IN
•
CONNECTION STYLE: FLARED LOCATION NOT OTHERWISE SPECIFIED
•
BOLT HOLE FLATS SERRATIONS: NOT PROVIDED
•
STYLE DESIGNATOR: 1 FLUID CONNECTION
•
FLUID CONNECTION QUANTITY: 1 LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
BOLT HOLE FLUID PASSAGEPROVIDED
SEAT ANGLE IN DEG37.0 LOCATION NOT OTHERWISE SPECIFIED
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
FLUID CONVEYANCE TYPE AND SIZE FOR WHICH DESIGNED3/4 IN. OD TUBE IN
CONNECTION STYLEFLARED LOCATION NOT OTHERWISE SPECIFIED
BOLT HOLE FLATS SERRATIONSNOT PROVIDED
STYLE DESIGNATOR1 FLUID CONNECTION
FLUID CONNECTION QUANTITY1 LOCATION NOT OTHERWISE SPECIFIED
BOLT HOLE DIAMETER1.062 INCHES MINIMUM AND 1.064 INCHES MAXIMUM IN
OVERALL LENGTH2.807 INCHES MINIMUM AND 2.881 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 2
AS4875/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-F-5509Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is NAS552-12D?
NAS552-12D is a CONNECTOR,MULTIPLE,FLUID PRESSUR.
What parts can replace NAS552-12D?
There are 2 known substitutes for NAS552-12D: AS4875/1, MIL-F-5509. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS552-12D?
NAS552-12D is cataloged in the U.S. Government catalog under NSN 4730-00-555-3364. This indicates validated use in U.S. government and defense supply chains.
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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.