PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16739Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-444-2602 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-444-2602 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-444-2602. Primary manufacturer part number: 16739.
Features
  • Seal,plain Encased — FSC 5330
  • Case Style: SQUARE
  • Housing Bore Diameter: 2.501 INCHES MINIMUM AND 2.503 INCHES MAXIMUM IN
  • Seal Width: 0.500 INCHES NOMINAL IN
  • Sealing Element Style: VERTICAL
  • Material: STEEL CASE
  • Criticality Code Justification: ZZZY
  • Accommodated Shaft Diameter: 1.688 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Case construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-444-2602, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Skf Usa Inc. Dba Skf Aerospace Sealing Solutions. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-444-2602
Primary Part Number16739
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Case StyleSQUARE
Housing Bore Diameter2.501 INCHES MINIMUM AND 2.503 INCHES MAXIMUM IN
Seal Width0.500 INCHES NOMINAL IN
Sealing Element StyleVERTICAL
MaterialSTEEL CASE
Criticality Code JustificationZZZY
Accommodated Shaft Diameter1.688 INCHES NOMINAL IN
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4820-00-018-3077A420 INTERCHANGEABLE
Valve,foot
WS Darley & Co Div Ohler Pump
4720-00-202-645416-739 INTERCHANGEABLE
Tubing,nonmetallic
Pakon Inc Dba Impak Division
4820-01-186-375916739 INTERCHANGEABLE
Disk,valve
Flowserve Inc
5998-01-432-5064D16739 INTERCHANGEABLE
Circuit Card Assembly
M C L, Inc.
Cross-Reference Index
Part NumberManufacturer
16739 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
16719-00 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
250122TYPE1 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
AA47917-1PC5 Ingersoll-Rand Co Standard Pump-Aldrich Div (USA)
250122 TYPE 1 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
4820-00-018-3077INTERCHANGEABLE
VALVE,FOOT
A420
4720-00-202-6454INTERCHANGEABLE
TUBING,NONMETALLIC
16-739
4820-01-186-3759INTERCHANGEABLE
DISK,VALVE
16739
5998-01-432-5064INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
D16739

Frequently Asked Questions

What is NSN 5330-00-444-2602?

NSN 5330-00-444-2602 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-444-2602?

NSN 5330-00-444-2602 has 5 cross-referenced part numbers: 16739 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 16719-00 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 250122TYPE1 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), AA47917-1PC5 (Ingersoll-Rand Co Standard Pump-Aldrich Div), 250122 TYPE 1 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-00-444-2602?

There are 4 known substitutes for 5330-00-444-2602: 4820-00-018-3077, 4720-00-202-6454, 4820-01-186-3759 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16739?

Key specifications for 16739: Case Style: SQUARE; Housing Bore Diameter: 2.501 INCHES MINIMUM AND 2.503 INCHES MAXIMUM IN; Seal Width: 0.500 INCHES NOMINAL IN; Sealing Element Style: VERTICAL. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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