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20976640204 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

20976640204: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include flange_width: 2.125 INCHES NOMINAL IN, flange_length: 1.250 INCHES NOMINAL IN, special_features: PIPE SIZE ACCOMODATION IS 0.500 INCHES; THREAD OF 4 MOUNTING HOLES IS UNC-3B (0.375-16) IN, style_designator: RECTANGULAR, WITH BOLT HOLES, bolt_hole_diameter: 0.375 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: FLANGE, PIPE FLANGE TO PIPE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-596-9862, 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
20976640204
NSN: 4730-01-596-9862
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
flange_width2.125 INCHES NOMINAL IN
flange_length1.250 INCHES NOMINAL IN
special_featuresPIPE SIZE ACCOMODATION IS 0.500 INCHES; THREAD OF 4 MOUNTING HOLES IS UNC-3B (0.375-16) IN
style_designatorRECTANGULAR, WITH BOLT HOLES
bolt_hole_diameter0.375 INCHES NOMINAL IN
bolt_hole_quantity4
part_name_assigned_by_controlling_agencyFLANGE, PIPE FLANGE TO PIPE
outside_edge_to_bolt_hole_center_distance_along_width0.313 INCHES NOMINAL IN
outside_edge_to_bolt_hole_center_distance_along_length0.750 INCHES NOMINAL IN
center_to_center_distance_between_bolt_holes_along_width1.500 INCHES NOMINAL IN
center_to_center_distance_between_bolt_holes_along_length0.625 INCHES NOMINAL IN
NSN4730-01-596-9862
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 20976640204 · 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
•
STYLE DESIGNATOR: RECTANGULAR, WITH BOLT HOLES
•
BOLT HOLE DIAMETER: 0.375 INCHES NOMINAL IN
•
FLANGE LENGTH: 1.250 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 4
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 0.625 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 1.500 INCHES NOMINAL IN
•
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECTANGULAR, WITH BOLT HOLES
BOLT HOLE DIAMETER0.375 INCHES NOMINAL IN
FLANGE LENGTH1.250 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH0.625 INCHES NOMINAL IN
SPECIAL FEATURESPIPE SIZE ACCOMODATION IS 0.500 INCHES; THREAD OF 4 MOUNTING HOLES IS UNC-3B (0.375-16) IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH1.500 INCHES NOMINAL IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.750 INCHES NOMINAL IN
FLANGE WIDTH2.125 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYFLANGE, PIPE FLANGE TO PIPE
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 20976640204?
20976640204 is a FLANGE,PIPE.
What is the NSN for 20976640204?
20976640204 is cataloged in the U.S. Government catalog under NSN 4730-01-596-9862. 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.