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20299-1 — PACKING NUT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

20299-1: PACKING NUT.

The PACKING NUT is a the manufacturer industrial component. Key specifications include end_item_identification: VALVE,RED, part_name_assigned_by_controlling_agency: SERVICE KIT. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-700-6976, 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
20299-1
NSN: 4730-00-700-6976
NIINs: 007006976, 015177790, 016929129
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81401 — CONTINENTAL BUILT WRIGHT ENGINE PARTS (USA)
SPECIFICATIONS
end_item_identificationVALVE,RED
part_name_assigned_by_controlling_agencySERVICE KIT
NSN4730-00-700-6976
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 20299-1 · 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
•
WIDTH ACROSS FLATS: 0.875 INCHES NOMINAL IN
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MATERIAL HARDNESS RATING: 19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
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HOLE OR SLOT QUANTITY: 3
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THREAD LENGTH: 0.290 INCHES NOMINAL IN
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-631, COMP 1048-CANCELED FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-637, COMP 1137 FED SPEC 2ND MATERIAL RESPONSE
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SMALLEST OUTSIDE DIAMETER: 0.741 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
MATERIAL HARDNESS RATING19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
HOLE OR SLOT QUANTITY3
THREAD LENGTH0.290 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-631, COMP 1048-CANCELED FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-637, COMP 1137 FED SPEC 2ND MATERIAL RESPONSE
OVERALL LENGTH0.500 INCHES NOMINAL IN
SMALLEST OUTSIDE DIAMETER0.741 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD SIZE3/4IN-16 IN
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 20299-1?
20299-1 is a PACKING NUT.
What is the NSN for 20299-1?
20299-1 is cataloged in the U.S. Government catalog under NSN 4730-00-700-6976. 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.