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1854776 — FLANGE,PIPE,BLIND

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1854776: FLANGE,PIPE,BLIND.

The FLANGE,PIPE,BLIND is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, thickness: 0.125 INCHES NOMINAL IN, flange_diameter: 2.031 INCHES NOMINAL IN, recess_diameter: 1.260 INCHES NOMINAL IN, style_designator: ROUND, ONE BOLT HOLE CIRCLE, surface_treatment: PAINT. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-077-7575, 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
1854776
NSN: 4730-01-077-7575
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 21877 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thickness0.125 INCHES NOMINAL IN
flange_diameter2.031 INCHES NOMINAL IN
recess_diameter1.260 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
surface_treatmentPAINT
bolt_hole_diameter0.144 INCHES NOMINAL IN
bolt_hole_quantity4
raised_face_height0.031 INCHES NOMINAL IN
bolt_circle_diameter1.781 INCHES NOMINAL IN
flange_section_styleTONGUED FACE (BLIND)
raised_face_diameter1.447 INCHES NOMINAL IN
NSN4730-01-077-7575
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1854776 · 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
•
FLANGE DIAMETER: 2.031 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: GROUND
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: SPERRY NO.436 -6951295-2 MFR REF SINGLE TREATMENT RESPONSE
•
FLANGE SECTION STYLE: TONGUED FACE (BLIND)
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
•
BOLT HOLE DIAMETER: 0.144 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,COM 24,1/2 FED SPEC SINGLE MATERIAL RESPONSE
•
RECESS DIAMETER: 1.260 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER2.031 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONGROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSPERRY NO.436 -6951295-2 MFR REF SINGLE TREATMENT RESPONSE
FLANGE SECTION STYLETONGUED FACE (BLIND)
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
BOLT HOLE DIAMETER0.144 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,COM 24,1/2 FED SPEC SINGLE MATERIAL RESPONSE
RECESS DIAMETER1.260 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
BOLT CIRCLE DIAMETER1.781 INCHES NOMINAL 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1854776?
1854776 is a FLANGE,PIPE,BLIND.
What is the NSN for 1854776?
1854776 is cataloged in the U.S. Government catalog under NSN 4730-01-077-7575. 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.