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81630 — SHOCK ABSORBER,DIRECT ACTION

✓ Government record, cited
InLine · HOSE FITTING
PRODUCT OVERVIEW

81630: SHOCK ABSORBER,DIRECT ACTION.

- LWL Duplex cable - 2x ST plug to 2x ST plug - Thread: 62.5/125µm, OM2 - No halogen. Key specifications include capacity: 10.0 MILLILITERS, material: GLASS LOCATION NOT OTHERWISE SPECIFIED, tip_type: REMOVABLE, part_name_assigned_by_controlling_agency: GASTIGHT SYRINGE. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-916-2299, 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
81630
NSN: 4730-00-916-2299
NIINs: 009162299, 011683749, 012129622, 013106560, 016271897, 017348654
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81982 — HYDRO-AIRE AEROSPACE CORP (USA)
SPECIFICATIONS
capacity10.0 MILLILITERS
materialGLASS LOCATION NOT OTHERWISE SPECIFIED
tip_typeREMOVABLE
part_name_assigned_by_controlling_agencyGASTIGHT SYRINGE
NSN4730-00-916-2299
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 81630 · InLine ⚠ 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
•
TEMP RATING: 550.0 FAHRENHEIT DEGF
•
FASTENING DEVICE TYPE: SELF-LOCKING HEXAGON NUT
•
STYLE DESIGNATOR: BAND
•
INSIDE DIAMETER: 6.630 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM NUT
TECHNICAL CHARACTERISTICS
TEMP RATING550.0 FAHRENHEIT DEGF
FASTENING DEVICE TYPESELF-LOCKING HEXAGON NUT
STYLE DESIGNATORBAND
OVERALL WIDTH1.000 INCHES NOMINAL IN
INSIDE DIAMETER6.630 INCHES NOMINAL IN
SPECIAL FEATURESW/NUT PLATE BRACKET AND NAS687X4K NUT PLATE
SURFACE TREATMENTCADMIUM NUT
SURFACE TREATMENTANODIZE BOLT
SURFACE TREATMENTANODIZE BAND
MATERIALSTEEL COMP 301 NUT
SUBSTITUTES & CROSS-REFERENCES 1
326-625-475SHReference document
Same NSN cross-reference
Reference document — Secondary reference
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 81630?
81630 is a SHOCK ABSORBER,DIRECT ACTION manufactured by InLine.
What parts can replace 81630?
There is 1 known substitute for 81630: 326-625-475SH. Substitute compatibility should be verified for your specific system.
What is the NSN for 81630?
81630 is cataloged in the U.S. Government catalog under NSN 4730-00-916-2299. 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.