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2970-1 — DIFFUSER,AIR,AIRCRAFT HEATING AN

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2970-1: DIFFUSER,AIR,AIRCRAFT HEATING AN.

DIFFUSER,AIR,AIRCRAFT HEATING AN. Key specifications include special_features: SOFT COVER, 3-7/8 INCHES X 5-1/2 INCHES; ISBN 08125337-5 IN, procurement_group_code: 27966. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-290-4519, 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
2970-1
NSN: 5325-00-290-4519
NIINs: 002904519, 010320676, 013095403, 013306018, 014863463
FSC: 5325 — Fastening Devices
CAGE: 53964 — KAYDON CUSTOM FILTRATION CORPORATION (USA)
SPECIFICATIONS
special_featuresSOFT COVER, 3-7/8 INCHES X 5-1/2 INCHES; ISBN 08125337-5 IN
procurement_group_code27966
NSN5325-00-290-4519
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2970-1 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LENGTH: 0.375 INCHES MINIMUM IN
•
INSERT SIZE: 0.452 IN. MIN,0.472 IN. MAX IN
•
STYLE DESIGNATOR: COIL
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD QUANTITY PER INCH: 16
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS
LENGTH0.375 INCHES MINIMUM IN
INSERT SIZE0.452 IN. MIN,0.472 IN. MAX IN
STYLE DESIGNATORCOIL
NOMINAL THREAD SIZE0.375 INCHES IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SUBSTITUTES & CROSS-REFERENCES 3
5340002904519Reference document
Same NSN cross-reference
Reference document — Secondary reference
54B6716H26Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MS21208C6-10Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2970-1?
2970-1 is a DIFFUSER,AIR,AIRCRAFT HEATING AN.
What parts can replace 2970-1?
There are 3 known substitutes for 2970-1: 5340002904519, 54B6716H26, MS21208C6-10. Substitute compatibility should be verified for your specific system.
What is the NSN for 2970-1?
2970-1 is cataloged in the U.S. Government catalog under NSN 5325-00-290-4519. 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.