PartsTable TECHNICAL DATA SHEET
NSN 4730-01-088-3206Government record, cited

Outlet, Boss4730-01-088-3206

NSN 4730-01-088-3206 · NIIN 010883206 · Part number 2621-053-01ASSY55
Guill Tool & Engineering Co Inc Div Guill Defense · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 29030
Government record, cited
NSN 4730-01-088-3206 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-088-3206. Manufacturer of record part number: 2621-053-01ASSY55.
Also searched as  4730-01-088-3206 · 4730010883206 · NIIN 010883206 · 01-088-3206 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 29030 · 2621-053-01ASSY55 · 2621-053-01
Nearby stock numbers  ·
Features
  • Outlet,boss — FSC 4730
  • Furnished Items and Quantity: 1 PLUG AND 1 PREFORMED PACKING
  • Mounting End Type: CONCAVE
  • Nominal Pipe Size Accommodated: 1.000 INCHES FIRST END IN
  • Connection Style: GASKET SEAL (BOSS) SECOND END
  • Connection Style: CONCAVE/CONVEX BEVELED (PIPE) FIRST END
  • Nominal Overall Length: 1.375 INCHES IN
  • Connection Type: BUTT WELD PIPE FIRST END
Identification
  • NSN: 4730-01-088-3206
  • NIIN: 010883206
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 2621-053-01ASSY55
  • Manufacturer: Guill Tool & Engineering Co Inc Div Guill Defense
General Description

The Outlet,boss, cataloged under National Stock Number 4730-01-088-3206, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Guill Tool & Engineering Co Inc Div Guill Defense. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-088-3206
Primary Part Number2621-053-01ASSY55
Item NameOutlet,boss
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerGuill Tool & Engineering Co Inc Div Guill Defense
StatusACTIVE
Furnished Items and Quantity1 PLUG AND 1 PREFORMED PACKING
Mounting End TypeCONCAVE
Nominal Pipe Size Accommodated1.000 INCHES FIRST END IN
Connection StyleGASKET SEAL (BOSS) SECOND END
Connection StyleCONCAVE/CONVEX BEVELED (PIPE) FIRST END
Nominal Overall Length1.375 INCHES IN
Connection TypeBUTT WELD PIPE FIRST END
Connection TypeTHREADED INTERNAL BOSS SECOND END
Style DesignatorGROOVED AND THREADED INTERNAL
Material Document and ClassificationMIL-C-15726,70:30 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Material Document and ClassificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE PLUG
Nominal Outside Diameter Tube Accommodated1.000 INCHES SECOND END IN
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size0.438 INCHES SECOND END IN
Thread Class2B SECOND END
MaterialCOPPER ALLOY OVERALL
MaterialNICKEL ALLOY PLUG
Thread Series DesignatorUNF SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-092-01082621-053-01ASSY45 POSSIBLE MATCH
OUTLET,BOSS
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-114-39652621-053-01ASSY38 POSSIBLE MATCH
OUTLET,BOSS
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-148-82462621-053-01ASSY106 POSSIBLE MATCH
OUTLET,BOSS
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-160-58542621-053-01ASSY51 POSSIBLE MATCH
BOSS ASSEMBLY,PITOT TUBE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-276-69552621-053-01 PC 41A POSSIBLE MATCH
COUPLING,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-317-89202621-053-01 PIECE 68 POSSIBLE MATCH
OUTLET,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-318-28432621-053-01 PC 99 POSSIBLE MATCH
OUTLET,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-329-21642621-053-01 PC-29 POSSIBLE MATCH
OUTLET,PIPE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-683-71032621-053-01PC124 POSSIBLE MATCH
OUTLET,BOSS
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-683-75722621-053-01PC81 POSSIBLE MATCH
OUTLET,BOSS
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
2621-053-01ASSY55 PRIMARY Guill Tool & Engineering Co Inc Div Guill Defense (USA)
Reference documents
ReferenceMeaning
2621-053-01 D/9 Drawing number reference only
U.S. Government activity
2621-053-01ASSY55 3/2 Design control — primary reference
U.S. Government activity
Related Parts
4730-01-092-0108POSSIBLE MATCH
OUTLET,BOSS
2621-053-01ASSY45
4730-01-114-3965POSSIBLE MATCH
OUTLET,BOSS
2621-053-01ASSY38
4730-01-148-8246POSSIBLE MATCH
OUTLET,BOSS
2621-053-01ASSY106
4730-01-160-5854POSSIBLE MATCH
BOSS ASSEMBLY,PITOT TUBE
2621-053-01ASSY51
4730-01-276-6955POSSIBLE MATCH
COUPLING,PIPE
2621-053-01 PC 41A
4730-01-317-8920POSSIBLE MATCH
OUTLET,PIPE
2621-053-01 PIECE 68
4730-01-318-2843POSSIBLE MATCH
OUTLET,PIPE
2621-053-01 PC 99
4730-01-329-2164POSSIBLE MATCH
OUTLET,PIPE
2621-053-01 PC-29
4730-01-683-7103POSSIBLE MATCH
OUTLET,BOSS
2621-053-01PC124
4730-01-683-7572POSSIBLE MATCH
OUTLET,BOSS
2621-053-01PC81
4730-01-683-7646POSSIBLE MATCH
OUTLET,BOSS
2621-053-01PC68A

Frequently Asked Questions

What is NSN 4730-01-088-3206?

NSN 4730-01-088-3206 is a Outlet,boss, manufactured by Guill Tool & Engineering Co Inc Div Guill Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-088-3206?

NSN 4730-01-088-3206 has 1 manufacturer part number on file: 2621-053-01ASSY55 (Guill Tool & Engineering Co Inc Div Guill Defense).

What NSN replaces 4730-01-088-3206?

11 possible matches (shared part number, not a government interchangeability claim): 4730-01-092-0108, 4730-01-114-3965, 4730-01-148-8246. Verify interchangeability with system specifications before substitution.

What are the specifications of 2621-053-01ASSY55?

Key specifications for 2621-053-01ASSY55: Furnished Items and Quantity: 1 PLUG AND 1 PREFORMED PACKING; Mounting End Type: CONCAVE; Nominal Pipe Size Accommodated: 1.000 INCHES FIRST END IN; Connection Style: GASKET SEAL (BOSS) SECOND END. 18 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-088-3206 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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