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578644 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

578644: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: PLASTIC W/RUBBER COVER; 0.770 IN. O/A DIA; 2.125 IN.

O/A LG IN. This part is cataloged in the U.S. Government catalog under NSN 5999-00-234-5800, 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
MRO→ MRO_GENERAL→ 578644
NSN: 5999-00-234-5800
NIINs: 002345800, 004375439
FSC: 5999 — Miscellaneous Electrical and Electronic Components
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)
SPECIFICATIONS
general_characteristics_item_descriptionPLASTIC W/RUBBER COVER; 0.770 IN. O/A DIA; 2.125 IN. O/A LG IN
NSN5999-00-234-5800
COMPONENT DIAGRAM
CONN A SFF-8482 CONN B SFF-8087 LENGTH: SAS CABLE ASSEMBLY | SFF-8482 to SFF-8087 Cable length: | SAS | Shielded TITLE CABLE ASSY PN 578644 MFR SPRING,HELICAL,COMPRESSION
KEY FEATURES
•
VOLTAGE RATING IN VOLTS: 115.0 AC
•
MOUNTING FACILITY QUANTITY: 1
•
MOUNTING METHOD: THREADED HOLE(S)
•
STYLE DESIGNATOR: RECTANGULAR SHAPE
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
VOLTAGE RATING IN VOLTS115.0 AC
OVERALL HEIGHT0.500 INCHES NOMINAL IN
MOUNTING FACILITY QUANTITY1
MOUNTING METHODTHREADED HOLE(S)
STYLE DESIGNATORRECTANGULAR SHAPE
OVERALL LENGTH1.035 INCHES MINIMUM AND 1.065 INCHES MAXIMUM IN
OVERALL WIDTH0.563 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.164 INCHES IN
THREAD CLASS2B
SUBSTITUTES & CROSS-REFERENCES 1
899849Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 578644?
578644 is a SPRING,HELICAL,COMPRESSION. It is classified as a MRO (MRO_GENERAL).
What parts can replace 578644?
There is 1 known substitute for 578644: 899849. Substitute compatibility should be verified for your specific system.
What is the NSN for 578644?
578644 is cataloged in the U.S. Government catalog under NSN 5999-00-234-5800. 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.